Trethowan is a Cornish surname, found both in Cornwall and amongst members of the Cornish diaspora. People with the name include:
- Anthony Trethowan (1945–2015), Australian politician
- Arthur Trethowan (1863–1937), Australian politician
- Ian Trethowan (1922–1990), British television executive
- Illtyd Trethowan (1907–1993), British religious philosopher
- John Trethowan (born 1936), Australian rules footballer
- Pat Trethowan (born 1941), Australian rules footballer
- Rebecca Trethowan (born 1985), New Zealand rugby union player
- Perry Trethowan, a fictional detective in a series of books by Robert Barnard
- Sir William Trethowan ( ) British professor of psychiatry, Birmingham University
See also
Surname listThis page lists people with the surname Trethowan. 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. Categories: