Bryan Keith "Dexter" Holland (born December 29, 1965) is an American musician, best known as the singer, rhythm guitarist, and primary songwriter for the punk rock band The Offspring.
Holland attended Pacifica High School in Garden Grove, California, where he graduated as class valedictorian in 1984. During high school, Holland was the best student in mathematics in his year, and he found it "just as exciting as punk rock". He then attended the University of Southern California, where he earned a BS in biology and an MS in molecular biology, and commenced a PhD in molecular biology. After the success of The Offspring, he suspended his candidature to focus on music. Holland had said in 1995 that, when he turns 40, he would rather be a professor at a university than play music.