Group B of the 2001 Copa América was one of the three groups of competing nations in the 2001 Copa América. It comprised Brazil, Mexico, Paraguay, and Peru. Group play ran from 12 to 18 July 2001.
Brazil won the group and faced Honduras, the runners-up of Group C, in the quarter-finals. Mexico finished second and faced Chile—the runners-up of Group A—in the quarter-finals. Peru finished third and faced Colombia, the winners of Group A, in the quarter-final. Paraguay finished fourth in the group, and were eliminated from the tournament.