• Aquila Romanus, Latin grammarian
• Romanus (comes), a comes Africae, rebelled against by Firmus (4th century usurper)

Saints

• St. Romanus of Caesarea, Martyr (c. 303), feast day November 18
• St. Romanus of Condat, Abbot, Hermit

(c. 460), feast day February 28

• St. Romanus of Subiaco, Monk, (c. 550), feast day May 22
• St. Romanus Ostiarius, feast day August 9
• St. Romanus the Melodist (St. Romanos the Melodist), (c. 556), feast day October 1
• St. Romanus of Blaye, feast day November 24
• St. Romanus of Rouen, Bishop, (c. 640), feast day October 23

Other

• Pope John XIX, whose given name was Romanus
• Pope Romanus
• Romanus, second Bishop of Rochester
• Romanus I, Byzantine emperor
• Romanus II, Byzantine emperor
• Romanus III, Byzantine emperor
• Romanus IV, Byzantine emperor
• Aegidius Romanus, medieval philosopher
• The hypothetical Pope Peter II, referred to as "Petrus Romanus" in the Prophecy of the Popes