Worldwide, Siniša (Sinisa 
, Siniša 
, Синиша 
) is a common male first name. The first name Siniša is characteristic of Southern Europe, particularly Croatia, where it is a common male name, Serbia, where it is quite a common male name, and Montenegro (explore the name in all countries). Measured by absolute frequency, it is commonest in Croatia, Serbia, and New Zealand. Much less frequently, Siniša is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Sinisa | Bosnia and Herzegovina, Croatia, Montenegro, New Zealand, Serbia |
| Siniša | Bosnia and Herzegovina, Croatia, Slovenia, Montenegro, Serbia |
| Синиша | Serbia, Russia |
| סינישה | Israel |
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siniša popović Croatian actor, HR (b. 1958) |
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| siniša paunović (b. 1903) |
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siniša varga Croatian dentist and politician, HR (b. 1965) |
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| siniša triva Croatian lawyer (b. 1919) |
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siniša dobrašinović Montenegrin football player, ME (b. 1977) |
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siniša ninković Serbian football player, RS (b. 1977) |
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siniša radanović Serbian football player, RS (b. 1979) |
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siniša martinović Croatian ice hockey player, DE (b. 1980) |
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siniša viđak Croatian swimmer |
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siniša gačić SI (b. 1980) |
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| siniša fulgosi association football player, HR (b. 1944) |
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| siniša belamarić Croatian waterpolo player, HR (b. 1947) |
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| siniša kisić 2nd Mayor of Brčko District, BA (b. 1954) |
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| siniša škarica HR (b. 1946) |
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| siniša svilan Croatian editor and journalist (1960-2016), HR (b. 1960) |
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