Stowers won the over-90 kilograms title four years ago and will return in a bid for more success.
All five of Samoa's Commonwealth Games gold medals have come in weightlifting, with Gold Coast silver medallist Don Opeloge also named in the Birmingham team.
The Pacific nation will also compete in athletics, boxing, judo, men's rugby sevens, swimming and wrestling at the Games, which are due to open on July 28.
In boxing, Ato Plodzicki-Faoagali will return after winning light-heavyweight silver in Gold Coast.
