Ole 'Iron Fist' Laursen (born August 21, 1977) is a Filipino-born Danish Welterweight Muay Thai kickboxer and mixed martial artist, he competed in K-1 and in ONE Championship.

Laursen was born in Manila, Philippines to a Danish father and a Spanish-Filipino mother and moved to Denmark with his family when he was two years old.

[2] However, he was unable to defend his title later on that year, losing a controversial decision to the Thai fighter Kongnapa in what many thought was a Laursen victory.

[5] In 2003 Laursen signed up with the newly formed European promotion SuperLeague where he faced Shane Chapman on his debut only to lose by decision.

[6] Despite this defeat Laursen had some initial success in SuperLeague with his Muay Thai style favouring five-round matches, going 4 and 2 with the organization by the end of 2004 and beating world champions such as Peter Crooke and Kamal El Amrani.

[12] Laursen did not begin to fight MMA regularly again until 2010 because he was focused on his K-1 and Muay Thai career, a decision he has subsequently said he regrets.

In November 2010 MMA website Bloody Elbow ranked Laursen number eight on a list of the top lightweight prospects in the world.