Marcil is a surname. Notable people with the surname include:
Brian Marcil (born 1948), Canadian football player Champlain Marcil (1920–2010), Canadian photojournalist Charles Marcil (1860–1937), Canadian politician Chris Marcil, American television writer and producer Claude Marcil (born 1964), Canadian fencer Serge Marcil (1944–2010), Canadian educator and politician Simon Marcil, Canadian politician Vanessa Marcil (born 1968), American actress William C. Marcil (born 1936), American media executive
See also Marcel as a surname Marzel, a surname