- A given name; best known for a ninth century missionary to the Slavs.
male given name
- A given name, cognate to Cyril.
- A given name, variant of Cyrille.
The name Cyrillus or Cyril or Cyryl is derived from Greek Κύριλλος (Kyrillos - lordly, masterful), related to kyrios - lord, master. It is the name of several historic figures:
- Saint Cyril of Alexandria, 4th century Coptic Pope & theologian
- Saint Cyril of Jerusalem, 4th century Patriarch & theologian
- Cyrillus, 5th century Greek jurist
- Saint Cyril, 9th century Byzantine Greek monk, scholar, theologian, linguist and apostle to the Slavs, believed to have co-invented the Glagolitic alphabet, the first Slavic alphabet, and translated the Bible into a Slavic language referred to as Old Church Slavonic.
- Cyril of Turaw, 12th century Belarusian Orthodox Christian bishop and theologian
- Sir Cyril Burt, 20th century psychologist
- Elder Cyril Pavlov (b. 1919) Russian Orthodox Christian monk, mystic and wonder-worker
- Another name of Nikita the Furrier
- Cyril Takayama, a Japanese American illusionist
- Cyril Sneer, the fictional villain aardvark of the 1980s cartoon series The Racoons.
- St. Cyril's Monastery, a monastery in Kiev, Ukraine.
Cyril in German: Kyrill
Cyril in Modern Greek (1453-): Κύριλλος
Cyril in French: Cyrille
Cyril in Dutch: Cyrillus
Cyril in Slovak: Cyril