Siir

Siir or spelling variations thereof may refer to:


 * Refik Osman Top (1897–1957), nicknamed Şiir, Turkish footballer, referee, coach and sports columnist
 * Şiir Eloğlu (born 1965), Turkish-German actress
 * Johannes Siir (1889–1941), Estonian colonel and sport shooter
 * Sa'ir, also spelled Si'ir, a village in the State of Palestine