General elections were held in Guam on November 3, 1998.[1] A Democratic Party primary was held to decide the party's gubernatorial candidates on 7 September.[1]
Incumbent Democrat Carl Gutierrez was re-elected to his second term. This was the last time a Democrat won statewide office on Guam until 2018, when Lou Leon Guerrero won the gubernatorial election over Republican lieutenant governor Ray Tenorio.