Trenwith is a surname. Notable people with the surname include:
- George Trenwith (1851–1890), American baseball player
- John Trenwith (1951–1998), New Zealand writer, humorist and academic
- Mark Trenwith, Australian comedian and actor
- Michael Trenwith (born 1945), English cricketer
- William Trenwith (1846–1925), Australian trade unionist and politician
Surname listThis page lists people with the surname Trenwith. If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link. Category: