Washington Township may refer to a number of townships in the United States, listed here by state (with the number of Washington Townships in each state in parentheses):
- Washington Township, Arkansas (disambiguation) (12)
- Washington Township, Illinois (disambiguation) (3)
- Washington Township, Indiana (disambiguation) (46)
- Washington Township, Iowa (disambiguation) (49)
- Washington Township, Kansas (disambiguation) (14)
- Washington Township, Michigan (disambiguation) (3)
- Washington Township, Minnesota (1)
- Washington Township, Missouri (disambiguation) (28)
- Washington Township, Nebraska (disambiguation) (6)
- Washington Township, New Jersey (disambiguation) (5)
- Washington Township, North Carolina (1)
- Washington Township, North Dakota (1)
- Washington Township, Ohio (disambiguation) (43)
- Washington Township, Oklahoma (3)
- Washington Township, Pennsylvania (disambiguation) (22)
- Washington Township, South Dakota (8)