diff --git a/Lib/test/test_zipfile.py b/Lib/test/test_zipfile.py
--- a/Lib/test/test_zipfile.py
+++ b/Lib/test/test_zipfile.py
@@ -1,14 +1,15 @@
 import contextlib
 import io
 import os
 import importlib.util
+import pathlib
 import posixpath
 import time
 import struct
 import zipfile
 import unittest
 
 
 from tempfile import TemporaryFile
 from random import randint, random, getrandbits
 
@@ -140,20 +141,23 @@ class AbstractTestsWithSourceFile:
                         break
                     zipdata2.append(read_data)
 
             self.assertEqual(b''.join(zipdata1), self.data)
             self.assertEqual(b''.join(zipdata2), self.data)
 
     def test_open(self):
         for f in get_files(self):
             self.zip_open_test(f, self.compression)
 
+    def test_open_with_pathlike(self):
+        self.zip_open_test(pathlib.Path(TESTFN2), self.compression)
+
     def zip_random_open_test(self, f, compression):
         self.make_test_archive(f, compression)
 
         # Read the ZIP archive
         with zipfile.ZipFile(f, "r", compression) as zipfp:
             zipdata1 = []
             with zipfp.open(TESTFN) as zipopen1:
                 while True:
                     read_data = zipopen1.read(randint(1, 1024))
                     if not read_data:
diff --git a/Lib/zipfile.py b/Lib/zipfile.py
--- a/Lib/zipfile.py
+++ b/Lib/zipfile.py
@@ -1063,21 +1063,21 @@ class ZipFile:
         self._didModify = False
         self.debug = 0  # Level of printing: 0 through 3
         self.NameToInfo = {}    # Find file info given name
         self.filelist = []      # List of ZipInfo instances for archive
         self.compression = compression  # Method of compression
         self.mode = mode
         self.pwd = None
         self._comment = b''
 
         # Check if we were passed a file-like object
-        if isinstance(file, str):
+        if isinstance(file, (str, os.PathLike)):
             # No, it's a filename
             self._filePassed = 0
             self.filename = file
             modeDict = {'r' : 'rb', 'w': 'w+b', 'x': 'x+b', 'a' : 'r+b',
                         'r+b': 'w+b', 'w+b': 'wb', 'x+b': 'xb'}
             filemode = modeDict[mode]
             while True:
                 try:
                     self.fp = io.open(file, filemode)
                 except OSError: