The Temple of Quirinus (Latin: Aedes Quirinus or Templum Quirinus) was an ancient Roman temple built on the western half of the Quirinal Hill near the Capitolium Vetus, on a site which now equates to the junction between Via del Quirinale and Via delle Quattro Fontane, beside Piazza Barberini.

[1][2] Domitian later built the Temple of the gens Flavia nearby.

[3] According to ancient authors, the temple of Quirinus was built and dedicated to Quirinus (the deified form of Romulus) by the consul Lucius Papirius Cursor in 293 BC.

[4][5] Work was done on the temple in the early imperial period, and literary references are found until the 4th century AD.

[1][2] Fieldwork conducted by Andrea Carandini employed ground penetrating radar on the Quirinal Hill, revealing possible remains of the temple.