Ammon (Greek Ἄμμων) was a geometrician who made a measurement of the walls of Rome, around the time of the first invasion of the Goths, that is, the 3rd century, and found them to be 21 miles in circumference.
- Olympiodorus, ap. Phot. Cod. 80, p. 63, ed. Bekker
- Smith, Philip (1867). "Ammon". In William Smith. Dictionary of Greek and Roman Biography and Mythology 1. Boston: Little, Brown and Company. p. 145.
This article incorporates text from a publication now in the public domain: Smith, William, ed. (1870). "article name needed". Dictionary of Greek and Roman Biography and Mythology.