Qarqar or Karkar most commonly refers to Qarqar, an ancient city in Syria. They may also refer to:
- Qarqar, Azerbaijan, a village
- Karkar Island, Papua New Guinea
- Qarqarçay, a river in Azerbaijan
- Karkar, Selseleh, a village in Iran
- Boubacar Traoré, a Malian musician nicknamed "Kar Kar"
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