Allen Eager (January 10, 1927 – April 13, 2003) was an American jazz tenor and alto saxophonist who also competed in auto racing and took part in LSD experiments.

Allen Eager was born in New York City on January 10, 1927. He grew up in the Bronx. According to Denise McCluggage, Eager could read aged 3, and learned to drive at the age of 9 with the help of his mother, after she caught him driving a garbage truck near the hotels that his parents owned in the Catskill Mountains.  He took clarinet lessons with David Weber of the New York Philharmonic at the age of 13.