Imette Carmella St. Guillen (March 2, 1981 – February 25, 2006) was an American graduate student who was raped and murdered in New York City. She was studying criminal justice at John Jay College of Criminal Justice in New York City. Her murder captured national attention; together with the later murder of Jennifer Moore, it was a catalyst for passage of legislation to require background checks of bouncers in bars and a security plan for nightclubs. Darryl Littlejohn, a bouncer, was convicted of St. Guillen's murder.