Jan Holub (born May 3, 1983, in Liberec, Czechoslovakia) is a former Czech professional ice hockey defenceman who played in the Czech Extraliga.
Holub has spent his whole career with HC Liberec, beginning at junior-level.
He was picked for the 2001 NHL Entry Draft by the New York Islanders as a seventh-round pick, but has never played for the Islanders.
He represented the Czech Republic junior team in 2003 World Junior Ice Hockey Championships, when Czech team was in quarterfinals.
This biographical article relating to a Czech ice hockey defenceman is a stub.