Calley may refer to:
- Brian Calley (1977-) is an American banker.
- Clifford Calley is a fictional character played by Mark Feuerstein.
- Henry Calley (1914 - 1997), was an English pilot and Conservative politician.
- Roy Calley is an English journalist.
- Thomas Charles Pleydell Calley (1856-1932) was a British politician.
- William Calley (1943-) is a convicted American war criminal, and a former U.S. Army officer involved in the My Lai Massacre.