Marcus Terentius Varro
![Fasti Antiates Maiores, an inscription containing the Roman calendar. This calendar predates the Julian reform of the calendar; it contains the months Quintilis and Sextilis, and allows for the insertion of an intercalary month](/Images/godic/202502/19/Roman-calendar0314.png")
![Plan of the birdhouse at Casinum designed and built by Varro](/Images/godic/202502/19/Birdhouse_at_Casinum0314.jpg")
- For others named Terentius Varro, see Varro (cognomen).
Marcus Terentius Varro (116 BC – 27 BC) was an ancient Roman scholar and writer. He is sometimes called Varro Reatinus to distinguish him from his younger contemporary Varro Atacinus.