Other Uses
- Omarolluk, a feature sometimes found in sedimentary rocks
- Hurricane Omar, a 2008 Atlantic hurricane
- Organization for Mine Clearance and Afghan Rehabilitation, a charitable non-governmental organisation
- Pact of Umar (c. 717 AD), an edict of the caliph Umar ibn AbdulAziz concerning dhimmi
- Umar Khel, a division of the Pashtun tribe Kakazai
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