Standish O'Grady may refer to:
- Standish O'Grady, 1st Viscount Guillamore (1766-1840), Lord Chief Baron of the Exchequer in Ireland
- Standish O'Grady (poet) (1793?-1841?), Irish-Canadian poet and priest
- Standish James O'Grady (1846–1928), Irish historical novelist and literary historian
- Standish Hayes O'Grady (1832–1915), Irish antiquarian