John Griesemer (born December 5, 1947 in Elizabeth, New Jersey) is an American author, journalist, and actor.

John Griesemer is an American actor, journalist, and novelist, known for his work in theater, film and literature.

John Griesemer graduated from the Peddie School in New Jersey and Dickinson College in Pennsylvania.

In 1980, he starred in the world premiere of Close Ties by Elizabeth Diggs at the Lexington Conservatory Theatre, sharing the stage with Margaret Barker and Sofia Landon Geier.

"[2] Griesemer has appeared in films such as Malcolm X, Days of Thunder and The Crucible, as well as the miniseries The Langoliers.