Omar is the usual Western spelling of the Arabic Umar, usually explained as "flourishing" or "long-lived", from the root amara, to live or thrive; the name also appears in the Hebrew Bible as a grandson of Esau. Umar ibn al-Khattab, the second caliph, and the Persian poet Omar Khayyam are its most famous bearers, and actor Omar Sharif made it familiar to American moviegoers. Omar rose from number 146 in 2000 to a peak of number 131 in 2006 and ranks number 260 among boys' names in 2025.