Harry Trelawny may refer to:
- Sir Harry Trelawny, 5th Baronet (1687–1762), British officer
- Harry Trelawny (1726–1800), British general and Coldstream Guards officer, nephew of the 5th Baronet
- Sir Harry Trelawny, 7th Baronet (1756–1834), Protestant preacher and convert to Roman Catholicism, nephew of the general
See also
edit- Henry Trelawny (c. 1658–1702), British Army officer and member of parliament