Last name Kosasih (Kosasih 
) , globally, is a common surname. The cognomen Kosasih is habitual in Indonesia, where it is quite a common surname, Singapore, where it is quite a rare surname, and Australia, where it is a rare surname. Not in comparison with a country's population, it is commonest in Indonesia, Australia, and Malaysia. Much less frequently, Kosasih is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kosasih | United States, Malaysia, Singapore, Indonesia, Australia |
| otong kosasih Indonesian academic, ID (b. 1905) |
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| kosasih purwanegara ID (b. 1913) |
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| r.a. kosasih ID (b. 1919) |
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| kosasih kartadiredja (b. 1934) |
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| rusna kosasih Indonesian politician (born 1949 in Bandung), ID (b. 1949) |
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| wahfir kosasih Indonesian politician (born 1962), ID (b. 1962) |
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| herman kosasih Indonesian politician (born 1964 in Lhokseumawe), ID (b. 1964) |
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| engkos a. kosasih ID (b. 1959) |
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| dede kosasih ID (b. 1963) |
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| cecep kosasih (b. 1969) |
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| sobarsa kosasih Indonesian political candidate, ID |
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| keegan kosasih researcher |
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| felix utama kosasih researcher |
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| reynaldi ikhsan kosasih researcher |
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| ayleen kosasih researcher |
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