Abimelech is an oratorio in three acts written by Christopher Smart and put to music by Samuel Arnold. It was first performed in Haymarket Theatre in 1768. A heavily revised version of the oratorio ran at the Covent Garden in 1772. Abimelech was the second of two oratorio librettos written by Smart, the first being Hannah written in 1764. Just like Hannah, Abimelech ran for only one night, each time. It was to be Smart's last work dedicated to an adult audience.