Jonathan Drew Groff (born March 26, 1985) is an American actor and singer. Known for his performances on stage and screen, he has received several accolades, including a Tony Award and a Grammy Award, as well as a  Primetime Emmy Award nomination. He was included in the annual Time 100 list of the most influential people in the world in 2026.

He began his career on Broadway, making his debut in the musical In My Life (2005). He later received Tony Award nominations for playing Melchior Gabor in the original production of the rock musical Spring Awakening (2006), King George III in the original production of the historical musical Hamilton (2015), and Bobby Darin in the original production of the jukebox musical Just in Time (2025). In 2024, he won the Tony Award for Best Actor in a Musical for playing Franklin Shepard in the musical revival of Stephen Sondheim's Merrily We Roll Along. He also starred as Seymour Krelborn in the Off-Broadway musical revival of Little Shop of Horrors in 2019.