David Alan Coulier (born September 21, 1959) is an American stand-up comedian, impressionist, television and voice actor, and television host. He is best known for his role as Joey Gladstone on the ABC sitcom Full House; he reprised the role for the Full House spin-off Fuller House. He has done extensive voice work including voiced Peter Venkman on The Real Ghostbusters, and Animal and Bunsen on Muppet Babies.

In the early 1990s, Coulier was married for two years to actress and model Jayne Modean. They have a son, Luc, born in 1990. After they were divorced, he dated singer Alanis Morissette for two years, but they broke up shortly before she recorded her album Jagged Little Pill. He was rumored to be the subject of Morissette's song "You Oughta Know" and, in a 2008 interview with the Calgary Herald, he indicated that he thinks the rumor is true, as there are many things about him in the song. However, in the 2021 documentary Jagged, Morissette denied the song is about him, despite the coincidental timing.