Tomáš Plekanec (born 31 October 1982) is a Czech professional ice hockey centre for HC Kladno of the 1st Czech Republic Hockey League (Czech.1), on loan from Kometa Brno of the Czech Extraliga (ELH).
He played most of his professional career for the Montreal Canadiens of the National Hockey League (NHL), but also briefly dressed for the Toronto Maple Leafs.
After beginning his career with HC Kladno, he was selected 71st overall by the Canadiens in the 2001 NHL Entry Draft.
Moving to North America in 2002, he played three seasons for the Canadiens' American Hockey League (AHL) affiliate, the Hamilton Bulldogs, before joining the NHL club full-time for the 2005–06 season.
By the time of his retirement from the NHL, he had played over 1,000 NHL games and is seventh all-time in games played for the Canadiens.
During his NHL career, Plekanec was known league-wide for his use of a turtleneck undershirt.