Larmer is a surname. Notable people with the surname include:
James Larmer (1808 or 1809–1886), English-born surveyor of New South Wales Jeff Larmer (born 1962), Canadian ice hockey player, brother of Steve Miles Larmer (born 1969), British historian Steve Larmer (born 1961), Canadian ice hockey player
See also Larmer Tree Gardens, garden in Wiltshire, England Larmer Tree Festival, music and arts festival in England Larmer Bay, British Virgin Islands - see Larmer Bay ruin Laumer, a surname and given name