Oskar Sundqvist (born 23 March 1994) is a Swedish ice hockey player who plays for St. Louis Blues in the National Hockey League (NHL). Prior to joining the Blues, he played for the Pittsburgh Penguins and their American Hockey League (AHL) affiliate, the Wilkes-Barre/Scranton Penguins. Before moving to North American, he played in the Swedish Hockey League with Skellefteå AIK. He won the Stanley Cup with the Blues in 2019.