Olav Gunnar Ballo is a Norwegian former politician for the Socialist Left Party (SV). Ballo changed party to Arbeiderpartiet in 2011. Ballo was elected to the Norwegian Parliament from Finnmark in 1997. He studied medicine at University of Würzburg, and has worked as a medical doctor. Ballo represented SV in Alta municipality council from 1991 to 1997. Ballo was the leader of the National Forensics Institute in Norway between 2009 and 2010/2011.