Trewin

Trewin may refer to:

People

 * Dennis Trewin AO (born 1946), Australian former public servant, head of the Australian Bureau of Statistics
 * Ion Trewin (1943–2015), British editor, publisher and author
 * J. C. Trewin OBE (1908–1990), British journalist, writer and drama critic
 * Kai Trewin (born 2001), Australian professional footballer
 * Max Trewin (1927–2005), Australian rules footballer
 * Morris Trewin, Canadian retired ice hockey goaltender
 * Todd Trewin (born 1958), American equestrian
 * Tom Trewin (1914–1992), Australian politician
 * Wendy Trewin (Wendy Monk) (1915–2000), English writer and critic

Other

 * Trewin Brothers, a Watford, UK department store bought by national retail giant John Lewis & Partners in 1970 and closed in 2020