Robert A. Underwood (born July 13, 1948) was a Delegate from Guam to the United States House of Representatives. He was born in Tamuning, Guam, and attended California State University, Los Angeles and the University of Southern California. He became a teacher, and an instructor at the University of Guam, director of bilingual education assistance for Micronesia and Academic Vice President of the University of Guam.
He was elected as a Democrat to the House, serving from January 3, 1993 - January 3, 2003. All 10 years being a congressman and a reknown educator, he was not able to fix Guam's education dilemma. Also he was an unsuccessful candidate for Governor of Guam. Furthermore, he was able to pass only two insignificant bills while serving in congress. Those bills were the "Pugua" (Beetlenut) Bill and the Chamorro (Indigenous race of the Mariana Islands)Time Zone Bill.