The Suicide Squad, also known as Task Force X (the name of a closely related but independent supervisory organization), is a name for two fictional organizations appearing in American comic books published by DC Comics. The first version debuted in The Brave and the Bold #25 (1959), and the second version, created by John Ostrander, debuted in Legends #3 (1987).

Suicide squad may refer to:

• any group that carries out a suicide attack
• Suicide Squad, a fictional organization featured in DC Comic books
  • "Suicide Squad", the name of a season two episode of Arrow, in reference to the DC Comics organization
  • Suicide Squad (film), a 2016 American superhero film based on the DC Comics organization
• "Suicide Squad", a group of physicists prepared to pour a cadmium solution on Chicago Pile-1 in the event of a meltdown
• A nickname for certain members of the GALCIT program's rocket research project
• Suicide Squad (hooligan firm), a group of soccer hooligans in England
• Suicide squad (New Zealand), 25 politicians appointed in 1950 to the New Zealand Legislative Council to assist passage of an Act of Parliament to abolish the Council