Dâaga (c. 1800 – 16 August 1837), also known as Longa Longa or Donald Stewart, was an African man who led the St. Joseph Mutiny in the British colony of Trinidad.

The sole source for Dâaga's life before is an interview conducted by Edward Lanzer Joseph, a white journalist in Trinidad. According to this narrative, Dâaga

Dâaga was born along the Slave Coast of West Africa, probably in modern-day Benin or Togo. He was likely born between 1800 and 1805.

Dâaga was condemned to death by a court martial held on 19 July 1837, although his commanding officer sought clemency. The death sentence was confirmed by Lieutenant-General Samuel Ford Whittingham in Barbados on 14 August 1837. He was executed on 16 August

Dâaga became a folk hero in Trinidad. American anthropologist Melville J. Herskovits visited Trinidad in the 1920s and reported

• August, Thomas (1991). "Rebels with a cause: The St. Joseph Mutiny of 1837". Slavery & Abolition. 12 (2): 73–91. doi:10.1080/01440399108575034.
• Saillant, John (2019). "Dâaga the Rebel on Land and at Sea: An 1837 Mutiny in the First West India Regiment in Caribbean and Atlantic Contexts". The CLR James Journal. 25 (1/2): 165–194. doi:10.5840/clrjames20202767. S2CID 213407808.