Karl Sebastien Dykhuis (/ˈdaɪkhaʊs/ DYKE-hows; born July 8, 1972) is a Canadian former professional ice hockey defenceman who played 12 seasons in the National Hockey League (NHL) for the Chicago Blackhawks, Philadelphia Flyers, Tampa Bay Lightning and Montreal Canadiens.

As a youth, he played in the 1985 and 1986 Quebec International Pee-Wee Hockey Tournaments with a minor ice hockey team from Sept-Îles, Quebec.

[1] During the 2004–05 NHL lockout Dykhuis played for the Amsterdam Bulldogs Hockey Club in The Netherlands.

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This biographical article relating to a Canadian ice hockey defenceman born in the 1970s is a stub.