Tupouniua

Tupouniua is a Tongan surname. Notable people with the surname include:


 * ʻAlipate Tupouniua (1915−1975), Tongan politician
 * Mahe Tupouniua (1927−2007), Tongan politician
 * Sitili Tupouniua (born 1997), New Zealand-born Tongan international rugby league footballer