diff --git a/pandas/_libs/khash.pxd b/pandas/_libs/khash.pxd
index ca3b83852b098..b5fe73df5d9be 100644
--- a/pandas/_libs/khash.pxd
+++ b/pandas/_libs/khash.pxd
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 from cpython.object cimport PyObject
 from numpy cimport int64_t, uint64_t, int32_t, uint32_t, float64_t
 
diff --git a/pandas/_libs/missing.pxd b/pandas/_libs/missing.pxd
index d4303ac28b9a5..5ab42a736712f 100644
--- a/pandas/_libs/missing.pxd
+++ b/pandas/_libs/missing.pxd
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 from numpy cimport ndarray, uint8_t
 
 cpdef bint checknull(object val)
diff --git a/pandas/_libs/tslibs/c_timestamp.pxd b/pandas/_libs/tslibs/c_timestamp.pxd
index e41197d0f20a2..d095b6027d2f9 100644
--- a/pandas/_libs/tslibs/c_timestamp.pxd
+++ b/pandas/_libs/tslibs/c_timestamp.pxd
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 from cpython.datetime cimport datetime
 
 from numpy cimport int64_t
diff --git a/pandas/_libs/tslibs/ccalendar.pxd b/pandas/_libs/tslibs/ccalendar.pxd
index 08f539a70a7ed..59ecaaaf2266e 100644
--- a/pandas/_libs/tslibs/ccalendar.pxd
+++ b/pandas/_libs/tslibs/ccalendar.pxd
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 from cython cimport Py_ssize_t
 
 from numpy cimport int64_t, int32_t
diff --git a/pandas/_libs/tslibs/conversion.pxd b/pandas/_libs/tslibs/conversion.pxd
index bb20296e24587..e5b2a37860068 100644
--- a/pandas/_libs/tslibs/conversion.pxd
+++ b/pandas/_libs/tslibs/conversion.pxd
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 from cpython.datetime cimport datetime
 
 from numpy cimport int64_t, int32_t
diff --git a/pandas/_libs/tslibs/frequencies.pxd b/pandas/_libs/tslibs/frequencies.pxd
index 6ec67ce250505..1b7efb8c5dfdf 100644
--- a/pandas/_libs/tslibs/frequencies.pxd
+++ b/pandas/_libs/tslibs/frequencies.pxd
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 cpdef str get_rule_month(object source, str default=*)
 
 cpdef get_freq_code(freqstr)
diff --git a/pandas/_libs/tslibs/nattype.pxd b/pandas/_libs/tslibs/nattype.pxd
index dae5bdc3f93b1..bd97462381b58 100644
--- a/pandas/_libs/tslibs/nattype.pxd
+++ b/pandas/_libs/tslibs/nattype.pxd
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 from cpython.datetime cimport datetime
 
 from numpy cimport int64_t
diff --git a/pandas/_libs/tslibs/np_datetime.pxd b/pandas/_libs/tslibs/np_datetime.pxd
index ebedee79405e5..c936d42b34db5 100644
--- a/pandas/_libs/tslibs/np_datetime.pxd
+++ b/pandas/_libs/tslibs/np_datetime.pxd
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 from cpython.datetime cimport date, datetime
 
 from numpy cimport int64_t, int32_t
diff --git a/pandas/_libs/tslibs/offsets.pxd b/pandas/_libs/tslibs/offsets.pxd
index 2829a27b9905c..5a553be537e52 100644
--- a/pandas/_libs/tslibs/offsets.pxd
+++ b/pandas/_libs/tslibs/offsets.pxd
@@ -1,3 +1 @@
-# -*- coding: utf-8 -*-
-
 cdef to_offset(object obj)
diff --git a/pandas/_libs/tslibs/timedeltas.pxd b/pandas/_libs/tslibs/timedeltas.pxd
index 097309b17823b..b08592755f2ee 100644
--- a/pandas/_libs/tslibs/timedeltas.pxd
+++ b/pandas/_libs/tslibs/timedeltas.pxd
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 from numpy cimport int64_t
 
 # Exposed for tslib, not intended for outside use.
diff --git a/pandas/_libs/tslibs/timestamps.pxd b/pandas/_libs/tslibs/timestamps.pxd
index 5e55e6e8d5297..3cb4b6cd8113b 100644
--- a/pandas/_libs/tslibs/timestamps.pxd
+++ b/pandas/_libs/tslibs/timestamps.pxd
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 from numpy cimport int64_t
 from pandas._libs.tslibs.np_datetime cimport npy_datetimestruct
 
diff --git a/pandas/_libs/tslibs/timezones.pxd b/pandas/_libs/tslibs/timezones.pxd
index 50c4a41f97a82..6d6ae8f8576ad 100644
--- a/pandas/_libs/tslibs/timezones.pxd
+++ b/pandas/_libs/tslibs/timezones.pxd
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 cpdef bint is_utc(object tz)
 cdef bint is_tzlocal(object tz)
 
diff --git a/pandas/tests/plotting/common.py b/pandas/tests/plotting/common.py
index 8e11ed83317df..f2f7b37170ec9 100644
--- a/pandas/tests/plotting/common.py
+++ b/pandas/tests/plotting/common.py
@@ -1,5 +1,3 @@
-# coding: utf-8
-
 import os
 import warnings
 
diff --git a/pandas/tests/plotting/test_boxplot_method.py b/pandas/tests/plotting/test_boxplot_method.py
index b84fcffe26991..0a096acc9fa6d 100644
--- a/pandas/tests/plotting/test_boxplot_method.py
+++ b/pandas/tests/plotting/test_boxplot_method.py
@@ -1,5 +1,3 @@
-# coding: utf-8
-
 import itertools
 import string
 
diff --git a/pandas/tests/plotting/test_frame.py b/pandas/tests/plotting/test_frame.py
index 32673b9a0a5cf..45ac18b2661c3 100644
--- a/pandas/tests/plotting/test_frame.py
+++ b/pandas/tests/plotting/test_frame.py
@@ -1,5 +1,3 @@
-# coding: utf-8
-
 """ Test cases for DataFrame.plot """
 
 from datetime import date, datetime
diff --git a/pandas/tests/plotting/test_groupby.py b/pandas/tests/plotting/test_groupby.py
index 8fec4bb134cb4..238639bd3732d 100644
--- a/pandas/tests/plotting/test_groupby.py
+++ b/pandas/tests/plotting/test_groupby.py
@@ -1,5 +1,3 @@
-# coding: utf-8
-
 """ Test cases for GroupBy.plot """
 
 
diff --git a/pandas/tests/plotting/test_hist_method.py b/pandas/tests/plotting/test_hist_method.py
index 50ebbc22f2739..fba4f07f6cc0f 100644
--- a/pandas/tests/plotting/test_hist_method.py
+++ b/pandas/tests/plotting/test_hist_method.py
@@ -1,5 +1,3 @@
-# coding: utf-8
-
 """ Test cases for .hist method """
 
 import numpy as np
diff --git a/pandas/tests/plotting/test_misc.py b/pandas/tests/plotting/test_misc.py
index 168e8c7de0b83..27039948dfc16 100644
--- a/pandas/tests/plotting/test_misc.py
+++ b/pandas/tests/plotting/test_misc.py
@@ -1,5 +1,3 @@
-# coding: utf-8
-
 """ Test cases for misc plot functions """
 
 import numpy as np
diff --git a/pandas/tests/plotting/test_series.py b/pandas/tests/plotting/test_series.py
index 8463f30bee8f0..5341878d4986e 100644
--- a/pandas/tests/plotting/test_series.py
+++ b/pandas/tests/plotting/test_series.py
@@ -1,5 +1,3 @@
-# coding: utf-8
-
 """ Test cases for Series.plot """