Mats Haldin (born May 17, 1975) is a Finnish orienteering competitor and two times European champion with the Finnish relay team.
He received a silver medal with the Finnish relay team at the 2003 World Orienteering Championships in Rapperswil/Jona, and again in 2006 in Aarhus.
He received a bronze medal in relay at the 2007 World Championships in Kiev.
At the 2009 World Orienteering Championships in Miskolc he won a bronze medal in the relay, together with Topi Anjala and Tero Föhr.His wife is orienteer from Czech Republic Vendula Klechová.