Last name کوثر (کوثر 
) , around the globe, is a rare family name. The last name کوثر is characteristic of Afghanistan, where it is a rare surname, Saudi Arabia, where it is a very rare surname, and Iran. More prevalently, کوثر is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| کوثر | Iran, Afghanistan, Saudi Arabia, Sudan, Morocco |
| شبانہ کوثر Pakistani cricketer, PK |
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| قاضی کوثر IR |
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