People who died at the age of 30

• Emperor Sakuramachi of Japan
• Steve Biko
• Patsy Cline
• Roland Garros (aviator)
• An Jung-geun
• John Harvard (clergyman)
• Lisa Lopes
• Jeff Buckley
• Steve Clark
• Andy Gibb
• Vicki Morgan
• Jim Croce
• Prince William of Gloucester
• Sylvia Plath
• Noor Inayat Khan
• Robert E. Howard
• Jock Cameron
• Eddie Lang
• Marie Francois Xavier Bichat
• Fredric Hasselquist