Guntars Mankus (born 5 July 1969) is a Latvian orienteer, rogainer and adventure racer.
At the 5th World Rogaining Championships in Lesná, Czech Republic in 2002 he won a gold medal and the title of the World Rogaining Champion in Mixed Open category in team with Anita Liepina and Raimonds Lapiņš.[1] At 6th World Rogaining Championships in Arizona, United States in 2004 the same team won a bronze medal in Mixed Open category. At 7th World Rogaining Championships in Warrumbungles, Australia they regained the title of the World Rogaining Champion in Mixed Open category.[2] At 13th World Rogaining Championships in Kiilopää, Finland he won a silver medal in Mixed Open category in team with Irita Puķīte.[3] At 18th World Rogaining Championships in Sierra Nevada, California, USA he won a gold medal in Mixed Open category in team with Irita Puķīte.
In 2005 he won a gold medal at the European Rogaining Championships in Mixed Open category in team with Anita Liepina in Nõva, Estonia.[4] In 2016 he won a gold medal at the European Rogaining Championships in Mixed Open category in team with Irita Puķīte in Aralar Range, Spain.
In 2014 he won a gold medal and the title of the World Champion in precision orienteering (PreO Open) and a bronze medal as a member of the Latvian team at the World Trail Orienteering Championships in Lavarone, Italy.[5]