Siosifa is a Tongan masculine given name. It may refer to:
- Siosifa Lisala (born 1994), Tongan-born Japanese rugby union player
- Siosifa Talakai (born 1997), Australian rugby league player
- Siosifa Tuʻitupou Tuʻutafaiva, Tongan lawyer and politician
This page or section lists people that share the same given name.
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