Thierry Gueorgiou (French pronunciation: [tjɛʁi ʒɔʁʒu]; born March 30, 1979) is a French orienteer who has won more than 20 gold medals in international competitions, including the World Orienteering Championships (WOC) middle distance event seven times: 2003–2005, 2007–2009 and 2011.
Gueorgiou runs for two orienteering clubs, the French NO St-Etienne and the Finnish Kalevan Rasti. With Kalevan Rasti he has won the Jukola Relay four times (2004, 2005, 2007 and 2013).
Running for Fédération Française de Course d'Orientation, he made his senior international debut at WOC 1997 in Grimstad, Norway, at the age of 18.
World Orienteering Championships
Gueorgiou was a member of the French relay team at WOC 2008 in Olomouc, Czech Republic. While running in a clear lead on the third leg, he suffered a bee sting on the back of his tongue. He left the course to go directly to the finish, where he collapsed, barely able to breathe. He was transported by helicopter to a hospital.
Martin Johansson 2009 WOC injury
At WOC 2009 in Miskolc, Hungary, during the last leg of the relay race Gueorgiou, Anders Nordberg (Norway), and Michal Smola (Czech Republic) were close behind the lead runner, Martin Johansson (Sweden), when Johansson suffered a 12 cm deep penetrating trauma from a stick in his right thigh. While Nordberg ran for help, Gueorgiou and Smola stayed with Johansson. Gueorgiou pulled out the stick, then applied compression to the wound using his own shirt and GPS tracking harness. Gueorgiou and Smola then carried Johansson to a road. Nordberg brought a physician there.
Gueorgiou was the 2006 European champion in trail orienteering, and is noted for his technical expertise.
Gueorgiou's nickname is Tero and he is commonly known as Tero Kettunen in Finland and Terje Gundersen in Norway. He lives in St. Étienne, France, where he studies biology.