Gura Humorului is a town in northern Romania. It is in Suceava County in the southern part of Bukovina. The population of Gura Humorului was 15,728 as of 2006. The mayor is Marius Ioan Ursaciuc of the National Liberal Party. On May 11, 1899, there was a disastrous fire which destroyed most of the town, more than 400 houses and businesses were lost in the blaze. It was a World War I battlefield between Austrian and Imperial Russian troops until the Russians were driven out in 1917.