Per-Owe "Trollet" Trollsås (18 January 1933 – 5 November 2000) was a Swedish sprinter who won a silver medal in the 400 m hurdles at the 1958 European Athletics Championships, setting a national record in the semifinal.
He competed in the 400 m hurdles and 4 × 400 m relay at the 1960 Summer Olympics, but failed to reach the finals.Trollsås won national titles in the 100 m (1952–53), 400 m hurdles (1957–60) and 4 × 400 m relay (1958).
After retiring from competitions he served as vice-chairman of the Stora Grabbars Association for many years.