Cognomen Tonga (Toga 
, Tonga 
, Тонга 
) , all around the world, is a common family name. The surname Tonga is habitual in Fiji, where it is quite a common surname, Cameroon, and Zambia, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Cameroon, Philippines, and Mexico. Also, Tonga is the forename as well as the last name.
| antonius tui tonga (1850-1905) Pacific Islander community leader and farmer (b. 1850) |
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| tonga mahuta Ngati Mahuta leader (b. 1897) |
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tonga tuʻiʻafitu Member of Parliament of Tonga, TO (b. 1962) |
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willie tonga Australian rugby league footballer, AU (b. 1983) |
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esikeli tonga Australian rugby league footballer, AU (b. 1988) |
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| marcel tonga Ph.D. Université Laval 1987 (b. 1951) |
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| patrice tonga Russian association football player, CM (b. 1975) |
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| charlie tonga Tongan rugby league footballer and coach, AU (b. 1977) |
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| tonga lea'aetoa New Zealand rugby union footballer, NZ (b. 1977) |
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| katrina tonga researcher |
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| angelo dela tonga researcher (ORCID 0000-0002-3749-2921) |
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| drh. lukas aloycius tonga Indonesian political candidate, ID |
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| tonga athletic association federazione nazionale di atletica leggera di Tonga |
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| ane tonga Tongan art curator in New Zealand |
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| eda tonga researcher |
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