Quirinus was an ancient Sabine god of war. He was worshipped on the Quirinal Hill before Rome was founded. He was later incorporated into the Roman pantheon.
Quirinus was a member of the archaic Capitoline Triad. His cult was managed by a special priest, the Flamen Quirinalis. His festival, the Quirinalia, was celebrated on February 17.
The Temple of Quirinus on the Quirinal Hill was one of the oldest and biggest in Rome.