Franco John Mostert (born 27 November 1990) is a South African professional rugby union player who currently plays for Honda Heat and the South Africa national team.

[5] He fully recovered and was included in the Lions squad for the 2014 Super Rugby season[6] and made his debut in a 21–20 victory over the Cheetahs in Bloemfontein.

[9] Mostert was named in South Africa's squad for the 2019 Rugby World Cup.

[11] It was confirmed he had left Gloucester in June 2020 in order to pursue a career in Japan.

[12] It was later confirmed that Mostert returned to Japan Top League competition to sign for Honda Heat for their next season.