Surname Aga (Aga 
, Ага 
, آغا 
, among others...) , in all the world, is a common cognomen. The last name Aga is characteristic of Albania, where it is quite a common surname, Norway, and Azerbaijan, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in India, Ethiopia, and Nigeria. Likewise, Aga is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Aga | Philippines, Ethiopia, India, Nigeria, Indonesia |
| Ага | Kazakhstan, Bulgaria, Belarus, Azerbaijan, Russia |
| آغا | Iran, Afghanistan, Turkey |
| אגא | Israel |
| أغا | Turkey |
| aga no hime miko (b. 650) |
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| aga syed mohammad baqir kirmani Islamic Scholar and Aa'lim, IR (b. 1525) |
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mustapha aga Ottoman Empire ambassador (b. 1684) |
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| johannes pedersen aga Norwegian politician (1767-1838), NO (b. 1767) |
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| aga seyid ali tabrizi IR (b. 1787) |
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| lars johannesen aga Norwegian politician, NO (b. 1800) |
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aga vom hagen German painter, author and patron, died 1949, DE (b. 1872) |
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| johannes johannesson aga NO (b. 1814) |
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| selim aga Sudanese writer, LR (b. 1826) |
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kharaman-khan nazare aga French military officer of Persian origin (1877-1955), FR (b. 1877) |
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| nigogos aga (b. 1820) |
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| lars j. aga American politician, US (b. 1854) |
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| aga von bodelschwingh (b. 1862) |
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aga syed mustafa moosavi scholar and Aa'lim from Jammu & Kashmir, India (1924-2002), IN (b. 1924) |
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anu aga Indian billionaire, IN (b. 1942) |
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