Capitolinus is the name of several persons in early Church history:
1. Deputy of Thrace under Julian, who put St. AEmilian to death.
2. Martyr in Nicomedia with bishop Quintilian, celebrated March 8.
3. Martyr in Antioch with Zenobius, Emerita, Italica, Jovian, and Julian, commemorated Aug. 24.
4. Martyr at Rome with Eulalia, commemorated Dec. 11.