Cognomen Σπυρίδων (Spyridon 
, Spyros , Spiridon 
, among others...) , across the world, is a widespread surname. The last name Σπυρίδων is habitual in Greece, where it is a prevalent surname, Romania, where it is quite a common surname, and Georgia, where it is quite a rare surname. In absolute terms, this name is the most popular in Greece, Romania, and Bulgaria. Also, Σπυρίδων is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Spyros, Spyridon | Greece, Romania, United States, Italy, Cyprus |
| Spiridon | Bulgaria, Greece, Romania, United States, Italy |
| Спиридон | Kazakhstan, Bulgaria, Armenia, Russia, Ukraine |
| Spiridione | France, Argentina, United Kingdom, United States, Italy |
| Σπυρίδων | Greece |
| Spiridion | France, Greece, United Kingdom, Romania, United States |
| Spirydon | United Kingdom, Poland, United States |
| Спірідон | Ukraine |
| γεώργιος σπυρίδων GR (b. 1800) |
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| άγγελος σπυρίδων Greek association football player, GR (b. 1946) |
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| σπύρος σπυρίδων Greek politician, GR (b. 1954) |
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