Stephenson Antonio Wallace (born November 11, 1982) is a former swimmer from Saint Vincent and the Grenadines, who specialized in sprint freestyle events.

[2] He challenged six other swimmers in heat one, including 16-year-olds Wael Ghassan of Qatar and Hassan Mubah of the Maldives.

Diving in with a 0.87-second deficit, Wallace scorched the field to post a fourth-seeded time and a lifetime best of 27.84.

Wallace failed to advance into the semifinals, as he placed seventy-first overall out of 80 swimmers in the prelims.

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