Lenthall may refer to:
- People
- John Lenthall (shipbuilder) (1807-1882), American naval architect and shipbuilder
- Sir John Lenthall, 1st Baronet (1624/5–1681), English lawyer and member of parliament
- William Lenthall (1591-1662), English politician who served as Speaker of the House of Commons
- Other
- Lenthalls Dam, a dam in Queensland, Australia
- USNS John Lenthall (T-AO-189), a United States Navy fleet replenishment oiler in service since 1987.
- Lenthall Houses, listed on the National Register of Historic Places in Washington, D.C.