Lennox Lewis - Canada (born England to Jamican-born parents)
Joachim Alcine - Canada (born Haiti)
Bermane Stiverne - Canada (born Haiti)
Adonis Stevenson - Canada (born Haiti)
Arturo Gatti - raised in Canada, hailing from Jersey City, NJ, USA, (born Italy)
Otis Grant - Canada (born Jamaica)
Trevor Berbick - Canada (born Jamaica)
Donovan Razor Ruddock - Canada (born Jamaica)

Meb Keflezighi - USA (born Eritria, Africa)
Ben Johnson - Canada (born Jamaica)


Around the late 1990s or early 2000s, Vince McMahon had a lot of Canadians on the WWE roster, and he decided it would be good for business if they were announced as hailing from American cities instead of Canadian cities.

Edge
Christian
Bret Hart
Test
Chris Benoit
Lance Storm
Val Venis
Gail Kim

*Chris Jericho was born in the USA.

I like how pro-wrestlers come up with something to add to their mystique:

Kamala - Uganda (born Mississipi, USA)
Abdullah the Butcher - The Sudan, Africa (born Windsor, Ontario, Canada.)
Cactus Jack (Mick Foley) - Truth or Consequences, New Mexico (born Indiana, USA)
Jake the Snake Roberts - Stone Mountain, Georgia (born Texas)
The Ultimate Warrior - Parts Unknown (born Indiana)