diff --git a/pandas/plotting/_misc.py b/pandas/plotting/_misc.py
index 2f9c7e109f0c0..213ca77466b8f 100644
--- a/pandas/plotting/_misc.py
+++ b/pandas/plotting/_misc.py
@@ -364,7 +364,7 @@ def parallel_coordinates(
     --------
     >>> from matplotlib import pyplot as plt
     >>> df = pd.read_csv('https://raw.github.com/pandas-dev/pandas/master'
-                        '/pandas/tests/data/iris.csv')
+                        '/pandas/tests/data/csv/iris.csv')
     >>> pd.plotting.parallel_coordinates(
             df, 'Name',
             color=('#556270', '#4ECDC4', '#C7F464'))
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rename from pandas/tests/io/data/stata9_115.dta
rename to pandas/tests/io/data/stata/stata9_115.dta
diff --git a/pandas/tests/io/data/stata9_117.dta b/pandas/tests/io/data/stata/stata9_117.dta
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diff --git a/pandas/tests/io/excel/conftest.py b/pandas/tests/io/excel/conftest.py
index 843b3c08421b3..6ec2f477a442d 100644
--- a/pandas/tests/io/excel/conftest.py
+++ b/pandas/tests/io/excel/conftest.py
@@ -24,11 +24,12 @@ def merge_cells(request):
 
 
 @pytest.fixture
-def df_ref():
+def df_ref(datapath):
     """
     Obtain the reference data from read_csv with the Python engine.
     """
-    df_ref = read_csv("test1.csv", index_col=0, parse_dates=True, engine="python")
+    filepath = datapath("io", "data", "csv", "test1.csv")
+    df_ref = read_csv(filepath, index_col=0, parse_dates=True, engine="python")
     return df_ref
 
 
diff --git a/pandas/tests/io/excel/test_odf.py b/pandas/tests/io/excel/test_odf.py
index 47e610562a388..6e5610f4f5838 100644
--- a/pandas/tests/io/excel/test_odf.py
+++ b/pandas/tests/io/excel/test_odf.py
@@ -13,7 +13,7 @@
 def cd_and_set_engine(monkeypatch, datapath):
     func = functools.partial(pd.read_excel, engine="odf")
     monkeypatch.setattr(pd, "read_excel", func)
-    monkeypatch.chdir(datapath("io", "data"))
+    monkeypatch.chdir(datapath("io", "data", "excel"))
 
 
 def test_read_invalid_types_raises():
diff --git a/pandas/tests/io/excel/test_readers.py b/pandas/tests/io/excel/test_readers.py
index 1d3653f685e1e..8c3b9a07641f7 100644
--- a/pandas/tests/io/excel/test_readers.py
+++ b/pandas/tests/io/excel/test_readers.py
@@ -81,7 +81,7 @@ def cd_and_set_engine(self, engine, datapath, monkeypatch, read_ext):
             pytest.skip()
 
         func = partial(pd.read_excel, engine=engine)
-        monkeypatch.chdir(datapath("io", "data"))
+        monkeypatch.chdir(datapath("io", "data", "excel"))
         monkeypatch.setattr(pd, "read_excel", func)
 
     def test_usecols_int(self, read_ext, df_ref):
@@ -502,9 +502,11 @@ def test_read_from_http_url(self, read_ext):
         if read_ext == ".ods":  # TODO: remove once on master
             pytest.skip()
 
+        # TODO: alimcmaster1 - revert to master
         url = (
-            "https://raw.github.com/pandas-dev/pandas/master/"
-            "pandas/tests/io/data/test1" + read_ext
+            "https://raw.githubusercontent.com/alimcmaster1"
+            "/pandas/mcmali-tests-dir-struct/"
+            "pandas/tests/io/data/excel/test1" + read_ext
         )
         url_table = pd.read_excel(url)
         local_table = pd.read_excel("test1" + read_ext)
@@ -527,7 +529,7 @@ def test_read_from_s3_url(self, read_ext, s3_resource):
     def test_read_from_file_url(self, read_ext, datapath):
 
         # FILE
-        localtable = os.path.join(datapath("io", "data"), "test1" + read_ext)
+        localtable = os.path.join(datapath("io", "data", "excel"), "test1" + read_ext)
         local_table = pd.read_excel(localtable)
 
         try:
@@ -828,7 +830,7 @@ def cd_and_set_engine(self, engine, datapath, monkeypatch, read_ext):
             pytest.skip()
 
         func = partial(pd.ExcelFile, engine=engine)
-        monkeypatch.chdir(datapath("io", "data"))
+        monkeypatch.chdir(datapath("io", "data", "excel"))
         monkeypatch.setattr(pd, "ExcelFile", func)
 
     def test_excel_passes_na(self, read_ext):
diff --git a/pandas/tests/io/excel/test_xlrd.py b/pandas/tests/io/excel/test_xlrd.py
index fc36be9e1b738..e04dfc97d4968 100644
--- a/pandas/tests/io/excel/test_xlrd.py
+++ b/pandas/tests/io/excel/test_xlrd.py
@@ -35,7 +35,7 @@ def test_read_xlrd_book(read_ext, frame):
 
 # TODO: test for openpyxl as well
 def test_excel_table_sheet_by_index(datapath, read_ext):
-    path = datapath("io", "data", "test1{}".format(read_ext))
+    path = datapath("io", "data", "excel", "test1{}".format(read_ext))
     with pd.ExcelFile(path) as excel:
         with pytest.raises(xlrd.XLRDError):
             pd.read_excel(excel, "asdf")
diff --git a/pandas/tests/io/test_common.py b/pandas/tests/io/test_common.py
index 655fd9d01c1c0..2af370a696860 100644
--- a/pandas/tests/io/test_common.py
+++ b/pandas/tests/io/test_common.py
@@ -208,21 +208,33 @@ def test_read_expands_user_home_dir(
     @pytest.mark.parametrize(
         "reader, module, path",
         [
-            (pd.read_csv, "os", ("io", "data", "iris.csv")),
-            (pd.read_table, "os", ("io", "data", "iris.csv")),
-            (pd.read_fwf, "os", ("io", "data", "fixed_width_format.txt")),
-            (pd.read_excel, "xlrd", ("io", "data", "test1.xlsx")),
-            (pd.read_feather, "feather", ("io", "data", "feather-0_3_1.feather")),
+            (pd.read_csv, "os", ("data", "iris.csv")),
+            (pd.read_table, "os", ("data", "iris.csv")),
+            (
+                pd.read_fwf,
+                "os",
+                ("io", "data", "fixed_width", "fixed_width_format.txt"),
+            ),
+            (pd.read_excel, "xlrd", ("io", "data", "excel", "test1.xlsx")),
+            (
+                pd.read_feather,
+                "feather",
+                ("io", "data", "feather", "feather-0_3_1.feather"),
+            ),
             (
                 pd.read_hdf,
                 "tables",
                 ("io", "data", "legacy_hdf", "datetimetz_object.h5"),
             ),
-            (pd.read_stata, "os", ("io", "data", "stata10_115.dta")),
+            (pd.read_stata, "os", ("io", "data", "stata", "stata10_115.dta")),
             (pd.read_sas, "os", ("io", "sas", "data", "test1.sas7bdat")),
             (pd.read_json, "os", ("io", "json", "data", "tsframe_v012.json")),
             (pd.read_msgpack, "os", ("io", "msgpack", "data", "frame.mp")),
-            (pd.read_pickle, "os", ("io", "data", "categorical.0.25.0.pickle")),
+            (
+                pd.read_pickle,
+                "os",
+                ("io", "data", "pickle", "categorical.0.25.0.pickle"),
+            ),
         ],
     )
     def test_read_fspath_all(self, reader, module, path, datapath):
@@ -296,7 +308,7 @@ def test_write_fspath_hdf5(self):
 
 @pytest.fixture
 def mmap_file(datapath):
-    return datapath("io", "data", "test_mmap.csv")
+    return datapath("io", "data", "csv", "test_mmap.csv")
 
 
 class TestMMapWrapper:
diff --git a/pandas/tests/io/test_html.py b/pandas/tests/io/test_html.py
index 3d855a12d5481..1cd6740ab831a 100644
--- a/pandas/tests/io/test_html.py
+++ b/pandas/tests/io/test_html.py
@@ -63,7 +63,7 @@ def test_bs4_version_fails(monkeypatch, datapath):
 
     monkeypatch.setattr(bs4, "__version__", "4.2")
     with pytest.raises(ImportError, match="Pandas requires version"):
-        read_html(datapath("io", "data", "spam.html"), flavor="bs4")
+        read_html(datapath("io", "data", "html", "spam.html"), flavor="bs4")
 
 
 def test_invalid_flavor():
@@ -78,7 +78,7 @@ def test_invalid_flavor():
 @td.skip_if_no("bs4")
 @td.skip_if_no("lxml")
 def test_same_ordering(datapath):
-    filename = datapath("io", "data", "valid_markup.html")
+    filename = datapath("io", "data", "html", "valid_markup.html")
     dfs_lxml = read_html(filename, index_col=0, flavor=["lxml"])
     dfs_bs4 = read_html(filename, index_col=0, flavor=["bs4"])
     assert_framelist_equal(dfs_lxml, dfs_bs4)
@@ -95,10 +95,10 @@ def test_same_ordering(datapath):
 class TestReadHtml:
     @pytest.fixture(autouse=True)
     def set_files(self, datapath):
-        self.spam_data = datapath("io", "data", "spam.html")
+        self.spam_data = datapath("io", "data", "html", "spam.html")
         self.spam_data_kwargs = {}
         self.spam_data_kwargs["encoding"] = "UTF-8"
-        self.banklist_data = datapath("io", "data", "banklist.html")
+        self.banklist_data = datapath("io", "data", "html", "banklist.html")
 
     @pytest.fixture(autouse=True, scope="function")
     def set_defaults(self, flavor, request):
@@ -133,9 +133,11 @@ def test_banklist_url(self):
 
     @tm.network
     def test_spam_url(self):
+        # TODO: alimcmaster1 - revert to master
         url = (
-            "https://raw.githubusercontent.com/pandas-dev/pandas/master/"
-            "pandas/tests/io/data/spam.html"
+            "https://raw.githubusercontent.com/alimcmaster1/"
+            "pandas/mcmali-tests-dir-struct/"
+            "pandas/tests/io/data/html/spam.html"
         )
         df1 = self.read_html(url, ".*Water.*")
         df2 = self.read_html(url, "Unit")
@@ -376,7 +378,7 @@ def test_python_docs_table(self):
     @pytest.mark.slow
     def test_thousands_macau_stats(self, datapath):
         all_non_nan_table_index = -2
-        macau_data = datapath("io", "data", "macau.html")
+        macau_data = datapath("io", "data", "html", "macau.html")
         dfs = self.read_html(macau_data, index_col=0, attrs={"class": "style1"})
         df = dfs[all_non_nan_table_index]
 
@@ -385,7 +387,7 @@ def test_thousands_macau_stats(self, datapath):
     @pytest.mark.slow
     def test_thousands_macau_index_col(self, datapath):
         all_non_nan_table_index = -2
-        macau_data = datapath("io", "data", "macau.html")
+        macau_data = datapath("io", "data", "html", "macau.html")
         dfs = self.read_html(macau_data, index_col=0, header=0)
         df = dfs[all_non_nan_table_index]
 
@@ -566,7 +568,7 @@ def test_parse_header_of_non_string_column(self):
         tm.assert_frame_equal(result, expected)
 
     def test_nyse_wsj_commas_table(self, datapath):
-        data = datapath("io", "data", "nyse_wsj.html")
+        data = datapath("io", "data", "html", "nyse_wsj.html")
         df = self.read_html(data, index_col=0, header=0, attrs={"class": "mdcTable"})[0]
 
         expected = Index(
@@ -594,7 +596,7 @@ def try_remove_ws(x):
 
         df = self.read_html(self.banklist_data, "Metcalf", attrs={"id": "table"})[0]
         ground_truth = read_csv(
-            datapath("io", "data", "banklist.csv"),
+            datapath("io", "data", "csv", "banklist.csv"),
             converters={"Updated Date": Timestamp, "Closing Date": Timestamp},
         )
         assert df.shape == ground_truth.shape
@@ -889,7 +891,7 @@ def test_parse_dates_combine(self):
         tm.assert_frame_equal(newdf, res[0])
 
     def test_computer_sales_page(self, datapath):
-        data = datapath("io", "data", "computer_sales_page.html")
+        data = datapath("io", "data", "html", "computer_sales_page.html")
         msg = (
             r"Passed header=\[0,1\] are too many "
             r"rows for this multi_index of columns"
@@ -897,11 +899,11 @@ def test_computer_sales_page(self, datapath):
         with pytest.raises(ParserError, match=msg):
             self.read_html(data, header=[0, 1])
 
-        data = datapath("io", "data", "computer_sales_page.html")
+        data = datapath("io", "data", "html", "computer_sales_page.html")
         assert self.read_html(data, header=[1, 2])
 
     def test_wikipedia_states_table(self, datapath):
-        data = datapath("io", "data", "wikipedia_states.html")
+        data = datapath("io", "data", "html", "wikipedia_states.html")
         assert os.path.isfile(data), "{data!r} is not a file".format(data=data)
         assert os.path.getsize(data), "{data!r} is an empty file".format(data=data)
         result = self.read_html(data, "Arizona", header=1)[0]
@@ -1095,14 +1097,14 @@ def test_multiple_header_rows(self):
         tm.assert_frame_equal(expected_df, html_df)
 
     def test_works_on_valid_markup(self, datapath):
-        filename = datapath("io", "data", "valid_markup.html")
+        filename = datapath("io", "data", "html", "valid_markup.html")
         dfs = self.read_html(filename, index_col=0)
         assert isinstance(dfs, list)
         assert isinstance(dfs[0], DataFrame)
 
     @pytest.mark.slow
     def test_fallback_success(self, datapath):
-        banklist_data = datapath("io", "data", "banklist.html")
+        banklist_data = datapath("io", "data", "html", "banklist.html")
         self.read_html(banklist_data, ".*Water.*", flavor=["lxml", "html5lib"])
 
     def test_to_html_timestamp(self):
@@ -1240,7 +1242,7 @@ def run(self):
         # force import check by reinitalising global vars in html.py
         reload(pandas.io.html)
 
-        filename = datapath("io", "data", "valid_markup.html")
+        filename = datapath("io", "data", "html", "valid_markup.html")
         helper_thread1 = ErrorThread(target=self.read_html, args=(filename,))
         helper_thread2 = ErrorThread(target=self.read_html, args=(filename,))
 
diff --git a/pandas/tests/io/test_pickle.py b/pandas/tests/io/test_pickle.py
index 23a16c885687f..3be966edef080 100644
--- a/pandas/tests/io/test_pickle.py
+++ b/pandas/tests/io/test_pickle.py
@@ -202,23 +202,25 @@ def test_legacy_sparse_warning(datapath):
     Generated with
 
     >>> df = pd.DataFrame({"A": [1, 2, 3, 4], "B": [0, 0, 1, 1]}).to_sparse()
-    >>> df.to_pickle("pandas/tests/io/data/sparseframe-0.20.3.pickle.gz",
+    >>> df.to_pickle("pandas/tests/io/data/pickle/sparseframe-0.20.3.pickle.gz",
     ...              compression="gzip")
 
     >>> s = df['B']
-    >>> s.to_pickle("pandas/tests/io/data/sparseseries-0.20.3.pickle.gz",
+    >>> s.to_pickle("pandas/tests/io/data/pickle/sparseseries-0.20.3.pickle.gz",
     ...             compression="gzip")
     """
     with tm.assert_produces_warning(FutureWarning):
         simplefilter("ignore", DeprecationWarning)  # from boto
         pd.read_pickle(
-            datapath("io", "data", "sparseseries-0.20.3.pickle.gz"), compression="gzip"
+            datapath("io", "data", "pickle", "sparseseries-0.20.3.pickle.gz"),
+            compression="gzip",
         )
 
     with tm.assert_produces_warning(FutureWarning):
         simplefilter("ignore", DeprecationWarning)  # from boto
         pd.read_pickle(
-            datapath("io", "data", "sparseframe-0.20.3.pickle.gz"), compression="gzip"
+            datapath("io", "data", "pickle", "sparseframe-0.20.3.pickle.gz"),
+            compression="gzip",
         )
 
 
@@ -382,7 +384,7 @@ def test_read(self, protocol, get_random_path):
 def test_unicode_decode_error():
     # pickle file written with py27, should be readable without raising
     #  UnicodeDecodeError, see GH#28645
-    path = os.path.join(os.path.dirname(__file__), "data", "test_py27.pkl")
+    path = os.path.join(os.path.dirname(__file__), "data", "pickle", "test_py27.pkl")
     df = pd.read_pickle(path)
 
     # just test the columns are correct since the values are random
diff --git a/pandas/tests/io/test_spss.py b/pandas/tests/io/test_spss.py
index ca84156d104fc..ccf3167d49371 100644
--- a/pandas/tests/io/test_spss.py
+++ b/pandas/tests/io/test_spss.py
@@ -9,7 +9,7 @@
 
 def test_spss_labelled_num(datapath):
     # test file from the Haven project (https://haven.tidyverse.org/)
-    fname = datapath("io", "data", "labelled-num.sav")
+    fname = datapath("io", "data", "spss", "labelled-num.sav")
 
     df = pd.read_spss(fname, convert_categoricals=True)
     expected = pd.DataFrame({"VAR00002": "This is one"}, index=[0])
@@ -23,7 +23,7 @@ def test_spss_labelled_num(datapath):
 
 def test_spss_labelled_num_na(datapath):
     # test file from the Haven project (https://haven.tidyverse.org/)
-    fname = datapath("io", "data", "labelled-num-na.sav")
+    fname = datapath("io", "data", "spss", "labelled-num-na.sav")
 
     df = pd.read_spss(fname, convert_categoricals=True)
     expected = pd.DataFrame({"VAR00002": ["This is one", None]})
@@ -37,7 +37,7 @@ def test_spss_labelled_num_na(datapath):
 
 def test_spss_labelled_str(datapath):
     # test file from the Haven project (https://haven.tidyverse.org/)
-    fname = datapath("io", "data", "labelled-str.sav")
+    fname = datapath("io", "data", "spss", "labelled-str.sav")
 
     df = pd.read_spss(fname, convert_categoricals=True)
     expected = pd.DataFrame({"gender": ["Male", "Female"]})
@@ -51,7 +51,7 @@ def test_spss_labelled_str(datapath):
 
 def test_spss_umlauts(datapath):
     # test file from the Haven project (https://haven.tidyverse.org/)
-    fname = datapath("io", "data", "umlauts.sav")
+    fname = datapath("io", "data", "spss", "umlauts.sav")
 
     df = pd.read_spss(fname, convert_categoricals=True)
     expected = pd.DataFrame(
@@ -67,7 +67,7 @@ def test_spss_umlauts(datapath):
 
 def test_spss_usecols(datapath):
     # usecols must be list-like
-    fname = datapath("io", "data", "labelled-num.sav")
+    fname = datapath("io", "data", "spss", "labelled-num.sav")
 
     with pytest.raises(TypeError, match="usecols must be list-like."):
         pd.read_spss(fname, usecols="VAR00002")
diff --git a/pandas/tests/io/test_sql.py b/pandas/tests/io/test_sql.py
index 183a47c6039ec..1c80dd9e59164 100644
--- a/pandas/tests/io/test_sql.py
+++ b/pandas/tests/io/test_sql.py
@@ -275,7 +275,7 @@ def _get_exec(self):
         else:
             return self.conn.cursor()
 
-    @pytest.fixture(params=[("io", "data", "iris.csv")])
+    @pytest.fixture(params=[("data", "iris.csv")])
     def load_iris_data(self, datapath, request):
         import io
 
diff --git a/pandas/tests/io/test_stata.py b/pandas/tests/io/test_stata.py
index a0ec06a2197ae..7fa3b968278d9 100644
--- a/pandas/tests/io/test_stata.py
+++ b/pandas/tests/io/test_stata.py
@@ -28,7 +28,7 @@
 
 @pytest.fixture
 def dirpath(datapath):
-    return datapath("io", "data")
+    return datapath("io", "data", "stata")
 
 
 @pytest.fixture
@@ -42,7 +42,7 @@ def parsed_114(dirpath):
 class TestStata:
     @pytest.fixture(autouse=True)
     def setup_method(self, datapath):
-        self.dirpath = datapath("io", "data")
+        self.dirpath = datapath("io", "data", "stata")
         self.dta1_114 = os.path.join(self.dirpath, "stata1_114.dta")
         self.dta1_117 = os.path.join(self.dirpath, "stata1_117.dta")