Simmers is an English language surname and a patronymic from Summer. Notable people with the name include:
Bren Simmers (1976), Canadian poet Brian Simmers (1940), former Scotland international rugby union player Chris Simmers (1969), Scottish former rugby union player Max Simmers (1904–1972), Scottish rugby union player Tertuis Simmers (1983), South African politician William Simmers (footballer) (1865–1950), Scottish footballer