Stevenson Adonis (born 22 September 1977), best known as Adonis Stevenson, is a Haitian Canadian professional boxer. He has held the WBC and lineal light-heavyweight titles since 2013, and previously the Ring magazine light-heavyweight title from 2013 to 2015. Stevenson is particularly known for his exceptional punching power and fast hand speed, and was one of the last boxers trained by Emanuel Steward before his death.
Stevenson's known name is an inversion of his family name and given name. Born in Port-au-Prince, Haiti, Stevenson moved to Montreal, Quebec with his family when he was seven. By 14 years old, he was living on the streets and soon fell into a violent gang which drew him into a criminal lifestyle. In his early twenties, after a criminal trial in 1998 in Quebec, Stevenson served 18 months of a four-year prison sentence for managing prostitutes, assault, and issuing threats. While in prison, he also pleaded guilty to aggravated assault after putting a fellow inmate into a coma. After leaving prison in 2001, Stevenson vowed he would never return.