Olof Patric Waldemar Sundström (born 14 December 1961) is a Swedish former professional ice hockey player.

[1] Sundström played in Vancouver for five seasons before being traded to the New Jersey Devils on September 15, 1987 for Kirk McLean, Greg Adams and New Jersey's second round choice (Leif Rohlin) in the 1988 NHL Entry Draft, where he played another five seasons.

[2][1] On April 22, 1988, Sundström set a Stanley Cup playoffs record (since tied by Mario Lemieux)[3] by recording eight points (three goals and five assists) in New Jersey's 10-4 victory over the Washington Capitals in Game 3 of the Patrick Division Final.

[4][5] After leaving the NHL in 1992, he returned to Sweden to play the 1992-1993 season for Björklöven[1] and was a contributing factor to them being promoted back to the Swedish Elite League (SEL) in 1993.

He also represented Sweden in 31 official "caps" including the 1981, 1982 World Ice Hockey Championships, the 1981 and the 1984 Canada Cups.