Carl Joseph Hayman (born 14 November 1979) is a retired New Zealand rugby union footballer who played at tighthead prop.

Hayman has previously played for the Highlanders in Super Rugby, Otago in the NPC, and Newcastle Falcons in the English Premiership, as well as making 45 appearances for New Zealand at international level.

[citation needed] In 2005, Hayman played for the New Zealand Māori, against Fiji in Suva and against the British & Irish Lions at Hamilton.

[citation needed] On 19 April 2007 it was announced that Hayman had signed a three-year contract with Premiership Rugby side Newcastle Falcons, turning down an offer from league champions Sale Sharks to do so.

He became one of a number of high-profile players that signed for Toulon alongside Jonny Wilkinson, Juan Martín Fernández Lobbe, Felipe Contepomi and Joe Van Niekerk.