Mardy can refer to:
As a place name Mardy, Monmouthshire, Wales Mardy, Shropshire, England
People Mardy Collins, American professional basketball player Mardy Fish, American professional tennis player
In music "Mardy Bum", a song by British indie band Arctic Monkeys, from their debut album Whatever People Say I Am, That's What I'm Not
See also Marty (disambiguation)