McMorrow is an Irish surname, derived from the Gaelic mac Murchada. Notable people with the surname include:
Aengus McMorrow (born 1927), Irish rugby union player Gerald McMorrow (born 1970), British director and writer of the short film Thespian X (2002) James Vincent McMorrow (born 1983), Irish folk musician John P. McMorrow (1926–2008), American politician Judith A. McMorrow (born 1955), American legal scholar Liam McMorrow (born 1987), Canadian professional basketball player Mallory McMorrow (born 1986), American politician Mary Ann McMorrow (1930–2013), Illinois Supreme Court justice Melissa McMorrow (born 1981), American boxer Michael McMorrow (born 1963), American musician, composer, and producer, and founding member of jam band Stolen Ogre Scott McMorrow, American playwright and actor Sean McMorrow (born 1982), Canadian ice hockey winger William J. McMorrow, American businessman