Fonua

Fonua is a surname. Notable people with the surname include:


 * Amini Fonua (born 1989), Tongan swimmer
 * Mahe Fonua (born 1992), Australian rugby league player
 * Opeti Fonua (born 1986), Tongan rugby union player
 * Semisi Fonua (1911–1968), Tongan noble and politician