| First Name | Greg |
| Last Name | Graffin |
| Full Name at Birth | Gregory Walter Graffin, Ph.D. |
| Age | 47 |
| Date of Birth | November 6, 1964 |
| Birthplace | Racine, Wisconsin |
| Eye Color | Blue |
| Star Sign | Scorpio |
| Ethnicity | White |
| Nationality | American |
| University | Cornell University |
| Occupation Category | Musician |
| Claim to Fame | vocalist and co-founder of the punk band Bad Religion |
| Music Genre | Rock |
Gregory Walter Graffin, Ph.D. (born November 6, 1964) is an American punk rock musician, college professor, and author. He is most recognized as the lead vocalist and songwriter of the noted Los Angeles band Bad Religion, which he co-founded in 1979 and is the band's only constant member, even though it now features two of their original members, guitarist Brett Gurewitz (who left and rejoined the band twice) and bassist Jay Bentley (who left in 1982, but returned in 1986). He also embarked on a solo career in 1997, where he released the album American Lesion. His follow-up album, Cold as the Clay was released nine years later. Graffin obtained his Ph.D. at Cornell University and has lectured courses in life sciences and paleontology at the University of California, Los Angeles. He also received Harvard Secular Society's "Outstanding Lifetime Achievement Award in Cultural Humanism" in 2008.
Selected Greg Graffin film and TV show credits: