My Scary Girl (Korean: 달콤, 살벌한 연인; lit. "Sweet, Bloodthirsty Lover") is a 2006 South Korean black/romantic comedy film written and directed by Son Jae-gon.

With a relatively low budget and lead actors who were not particularly famous at the time, My Scary Girl became a sleeper hit and the tenth top-selling domestic film of the year with 2,286,745 tickets sold.