Adrian Aucoin (born July 3, 1973) is a Canadian professional ice hockey defenceman currently playing for the Phoenix Coyotes of the National Hockey League (NHL).
Born in Ottawa, Ontario, Aucoin was drafted 117th overall by the Vancouver Canucks in the 1992 NHL Entry Draft. With the Canucks, Aucoin established himself as a significant offensive threat, specifically on the power-play. However, it was not until his fourth full season with the team that this became evident, as he rose from just 3 goals in 1997–98 to 23 the next season, 18 of which came on the power-play, tying Denis Potvin for the NHL single-season record (broken by Sheldon Souray's 19 powerplay goals in 2006–07). In addition to leading all league defencemen in goals and power-play goals in the 1998–99 NHL season, Aucoin also led all defencemen in shorthanded goals (2) and game-winning goals (3).
However, after one and half seasons, Aucoin's offensive production dropped to the point where he had only 3 goals through 47 games in 2000–01. On February 7, 2001, Aucoin (along with a second-round pick for the 2001 NHL Entry Draft) was traded to the Tampa Bay Lightning for goaltender Dan Cloutier. He only played 26 regular-season games for the Lightning before being traded in the off-season with Alexander Kharitonov to the New York Islanders for Mathieu Biron and a second-round pick in the 2002 NHL Entry Draft.