McQuay is a surname. Notable people with the surname include:
Herb McQuay (1948–2005), American singer Kevin McQuay (1949–2005), Australian businessman Leon McQuay (1950–1995), American football player Leon McQuay III (born 1994), American football player Mike McQuay (1949–1995), American science fiction writer Stan McQuay (born 1973), American bodybuilder Tony McQuay (born 1990), American sprinter and silver medalist at the 2012 Olympic Games
See also McQuay International, an HVAC manufacturing company McQuay-Norris, a defunct auto parts manufacturer and supplier