Brent Seabrook (born April 20, 1985) is a Canadian professional ice hockey defenceman playing for the Chicago Blackhawks of the National Hockey League (NHL). He was selected 14th overall by the Blackhawks in the 2003 NHL Entry Draft out of the Western Hockey League (WHL). He played four seasons of junior with the Lethbridge Hurricanes before joining the Blackhawks in 2005–06. Internationally, he competes for Team Canada and has won gold medals at the 2003 IIHF World U18 Championships, 2005 World Junior Championships and 2010 Winter Olympics in Vancouver.
Growing up in Tsawwassen, British Columbia, Seabrook played minor hockey with the Pacific Vipers, along with three future Chicago Blackhawks teammates, Colin Fraser, Troy Brouwer and Andrew Ladd. He went on to play major junior in the Western Hockey League (WHL) with the Lethbridge Hurricanes, having been drafted by them in the first round of the WHL Bantam Draft in 2000. Seabrook played with former Chicago Blackhawks teammate Kris Versteeg for three seasons in Lethbridge. After a 42-point season in 2002–03 with the Hurricanes, Seabrook was drafted 14th overall by the Chicago Blackhawks in the 2003 NHL Entry Draft.
Seabrook made his professional debut after completing his fourth and final WHL season, being assigned to the Norfolk Admirals, the Blackhawks' American Hockey League (AHL) affiliate, for the final three games of the regular season and six post-season games. Seabrook cracked the Blackhawks' lineup his first year out of junior in 2005–06 and recorded 5 goals and 32 points as a rookie. In his third NHL season, in 2007–08, Seabrook matched his rookie total with 32 points while tallying a personal best nine goals. He began the season on the top-defensive pairing with Duncan Keith.