Thomas J. Geraghty (April 10, 1883 – June 5, 1945), was an American screenwriter.

During the 1930s he went to the United Kingdom, where he wrote a number of screenplays.

He was born in Rushville, Indiana, and died in Hollywood, California.

In April 1924, Geraghty was credited with coining the soon-to-be-popular vaudeville pun, "The Thief of Badgags".

This article about an American screenwriter born in the 1880s is a stub.