Sosefo is a given name. Notable people with the given name include:
Sosefo Fifita (born 2003), New Zealand rugby league player Sosefo Ma'ake (born 1991), Tongan rugby union player Sosefo Mautāmakia I (died 1933), king of Uvea Sosefo Mautāmakia II (), king of Uvea Sosefo Panuve (born 1987), Wallisian athlete Sosefo Sakalia (born 1991), Tongan rugby union player Sosefo Suve (), Wallisian politician Sosefo Feʻaomoeata Vakata (born 1969), Tongan politician