Harlem Spartans, often abbreviated to HS, also known as Harlem O or simply Harlem, is a British hip hop collective based in Kennington, London. Members of Harlem Spartans have acquired over 100 million streams through their music. The name, "Harlem", is a nickname for their local area of Kennington. The police allege that Harlem Spartans is a gang, however this is denied by the group.
Harlem Spartans is affiliated with Walworth-based group Moscow17. Australian drill group Onefour cites Harlem Spartans as a major influence in their music. They are considered to be one of the pioneers of the UK drill scene.