John Aird may refer to:
- Sir John Aird, 1st Baronet (1833–1911), English engineering contractor associated with Aswan Dam, MP for North Paddington
- John Aird (banker) (1855–1938), Canadian banker
- John Black Aird (1923–1995), Canadian lawyer, statesman
- Sir John Aird, 4th Baronet
- Jock Aird, real name John Aird (born 1926), Scottish footballer
- Sir John Aird, 2nd Baronet of the Aird baronets
- Sir John Aird, 3rd Baronet of the Aird baronets