Donnie Defreitas (born June 10, 1985) is a former swimmer from Saint Vincent and the Grenadines, who specialized in sprint freestyle events.

[1] Defreitas qualified for the men's 50 m freestyle at the 2004 Summer Olympics in Athens, without having an entry time.

[2] He challenged five other swimmers in heat one, including 16-year-old Emile Rony Bakale of Congo.

He posted a lifetime best of 27.72 to earn a fourth spot by a 2.65-second margin behind winner Bakale.

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