Al-Muwallad (born 16 February 1988) is a Saudi Arabian athlete specialising in the high hurdles.
He won a gold medal at the 2017 Asian Indoor and Martial Arts Games and a bronze at the 2017 Asian Championships.
His personal bests are 13.36 seconds in the 110 metres hurdles (+0.9 m/s, Prague 2018) and 7.57 seconds in the 60 metres hurdles (Mondeville 2018).