Andreas Skår Bjørnstad (also written as: Andreas Skaar Bjornstad, born 14 April 1997) is a Norwegian Paralympic swimmer with cerebral palsy. He represented Norway at the 2016 Summer Paralympics in Rio de Janeiro, Brazil and he won the bronze medal in the men's 400 metres freestyle S7 event. He qualified to represent Norway at the 2020 Summer Paralympics held in Tokyo, Japan.