Joyce Johnson (born 1935) is an American author of fiction and nonfiction who won a National Book Critics Circle Award for her memoir Minor Characters about her relationship with Jack Kerouac.

Born Joyce Glassman to a Jewish family in Brooklyn, New York, Joyce was raised on the Upper West Side of Manhattan, a few blocks from the apartment of Joan Vollmer Adams where William Burroughs, Allen Ginsberg and Jack Kerouac lived from 1944 to 1946. She was a child actress and appeared in the Broadway production of I Remember Mama, which she writes about in her 2004 memoir Missing Men.

At the age of 13, Joyce rebelled against her controlling parents and began hanging out in Washington Square. She matriculated at Barnard College at 16, failing her graduation by one class. It was at Barnard that she became friends with Elise Cowen (briefly Allen Ginsberg's lover) who introduced her to the Beat circle. Ginsberg arranged for Glassman and Kerouac to meet on a blind date while she was working on her first novel, Come and Join the Dance, which was sold to Random House when she was only twenty-one and appeared five years later in 1962 just as she was starting her long career as a book editor.