Foreign Affairs officials aren't confirming his identity, but they say Canadian diplomats in Mexico are in contact with local authorities to gather additional information.
A foreign affairs spokesman would not comment on a CBC report regarding the death of Regina businessman Duane Lang.
The CBC is reporting the 46-year-old man's relatives say they've been told he was the victim of a homicide while on vacation in Puerto Vallarta on July 28.
Lang reportedly owned a insurance agency with other relatives.
There have been a number of high-profile deaths of Canadians in Mexico in recent years.
Earlier this year, Sheila Nabb of Calgary had to have extensive facial reconstruction after she was severely beaten while vacationing at a five-star hotel in Mazatlan.
Mexican authorities later charged Jose Ramon Acosta Quintero, 28, with attempted murder.