Sirr

Sirr may refer to:
 * Henry Charles Sirr (1807–1872), British lawyer, diplomat and writer
 * Henry Charles Sirr (soldier) (1764–1841), Irish soldier, police officer, wine merchant and collector of documents and curios
 * Peter Sirr (born 1960), Irish poet
 * Sirr Al-Khatim Al-Khalifa (1919–2006), Sudanese politician and ambassador
 * Sirr Parker (born 1977), former college and professional football running back
 * Sirr, one of the six Lataif-e-sitta or psychospiritual "organs" in Sufi psychology

SIRR may mean:
 * Seremban Inner Ring Road, Malaysia
 * Southern Illinois River-to-River Conference, a high school athletic conference