Siir or spelling variations thereof may refer to:
- Refik Osman Top (1897âÂÂ1957), nicknamed Ã
Âiir, Turkish footballer, referee, coach and sports columnist
- Ã
Âiir EloÃÂlu (born 1965), Turkish-German actress
- Johannes Siir (1889âÂÂ1941), Estonian colonel and sport shooter
- Sa'ir, also spelled Si'ir, a village in the State of Palestine