Around the globe, Siosaia (Siosaia 
) is a very rare predominantly male, but scarcely girly first name. The first name Siosaia is habitual in Northern America, particularly the United States, where it is an extremely rare principally male, but scarcely girly name.
| VARIANT | COUNTRY |
|---|---|
| Siosaia | Australia, United States, New Zealand, Canada |
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siosaia ma’ulupekotofa tuita, 9th lord tuita Tongan Noble and government minister (b. 1951) |
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siosaia lausiʻi Tongan politician and noble, TO (b. 1955) |
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siosaia vave Australian rugby league footballer, AU (b. 1989) |
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| siosaia tupou aleamotuʻa Tongan public servant and government minister, TO (b. 1961) |
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| siosaia fifita Japanese rugby union player, TO (b. 1998) |
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Aso, Lavulo, Toutai, Hamala, Hafoka, Haatoa, Vimahi, Fatani, Faupula, Fifita, Mangisi, Mataele, Moeakiola, Puletau, Taimani, Tupouata, Tuihalamaka, Vainuku, Falevatu, Fineanganofo, Aholelei, Fangaloka, Piutau, Palavi, Koloti, Sekona, Vea, Mila, Kava, Latu, Loni, Vave, Vuki, Unga, Maama, Moala, Faasisila, Pupua, Likio, Lutui, Tonga, Tupou, Faiva, Finau, Fonua, Folau, Ohuafi, Mataka, Langi, and Taumoepeau