What is "siemion"

The name Siemion may refer to:

As a surname:

• Łukasz Siemion (born 1985), Polish rower
• Wojciech Siemion (1928–2010), Polish stage and film actor

As a given name:

• Semyon Budyonny (1883–1973), also spelled Siemion Budionnyi, Soviet cavalryman, military commander, and politician
• Siemion Fajtlowicz (fl. 1967), Polish mathematician