The History and Fall of Caius Marius is a tragedy written by English writer Thomas Otway.

[1] The play was first performed in 1679[2] and is indebted to William Shakespeare's tragedy, Romeo and Juliet.

It is based on the Roman civil wars of Gaius Marius and his rival Sulla.

It was originally staged by the Duke's Company at the Dorset Garden Theatre in London.

[3] The published version was dedicated to the politician Lord Falkland.