Grêmio Atlético Sampaio, commonly known as GAS, is a Brazilian football club based in Boa Vista, Roraima, Roraima state. They competed in the Série C once.
The club was founded on June 11, 1965. They competed in the Série C in 1996, when they were eliminated in the First Stage of the competition.
Grêmio Atlético Sampaio play their home games at Estádio Flamarion Vasconcelos, nicknamed Canarinho. The stadium has a maximum capacity of 6,000 people.