Corey Allen (born Alan Cohen on June 29, 1934 in Cleveland, Ohio, U.S.) is an American film and television director, writer, producer and actor. He began his career as an actor but eventually became a television director. He may be best known as the character Buzz Gunderson in Nicholas Ray's Rebel Without a Cause (1955).

Corey Allen earned a Bachelor of Fine Arts from UCLA in Theatre in 1954. While there he received the department's Best Actor award and starred in the UCLA film, A Time Out of War, which won the Academy Award & Cannes & Venice Film Festival for Best Short Film. Upon graduation he appeared in approximately twenty plays in the Los Angeles area. Director Nicholas Ray spotted Allen and subsequently chose him for the role of "Buzz" in Rebel Without a Cause. This led to featured roles in another dozen films such as Private Property, Party Girl, Darby's Rangers and The Chapman Report. Allen also appeared in many leading television series including Perry Mason and Alfred Hitchcock Presents. Meanwhile he created, directed for and co-produced the Freeway Circuit Theatre which toured the Southwest for six seasons. Allen also directed numerous Equity productions in Los Angeles theatres. This led to a thirty year directorial career in television and film during which he directed three movies including Avalanche; television movies including the Emmy winning "Anne Gillian Story"; created a dozen pilots for television series including "Star Trek: The Next Generation", "Murder She Wrote", "Simon and Simon", "Codename: Foxfire", "Stone" and "Capitol". He has earned two Directors Guild nominations for Best Direction in a television series, the Award for Cable Excellence for Best Direction of "Paper Chase" and received an Emmy for Best Direction of a "Hill Street Blues". Throughout this career Allen instructed acting, including three years at the Actors Workshop, and for the last nine years, conducted cold reading workshops at the Margie Haber Studio. This year Allen was presented with an honorary Doctorate of Humane Letters from Columbia College-Holllywood for his work in helping to create their acting and directing curricula.

Starting out as an actor in 1954, Corey Allen was often cast as a brash, arrogant young tough, most notably in Rebel Without a Cause (1955) as the driver who got trapped in the car during the "chicken" race with James Dean (I) and went over the cliff. He retired from acting in the 1960s, and turned to directing. Although he has directed several features, the vast majority of his work has been in episodic TV series and made-for-television movies.