Mario Alexandru Arvinte (born 22 September 1994) is a Romanian rugby union football player. He plays as a flanker for professional SuperLiga club Steaua București.
Mario Arvinte played for Farul Constanța in Romania, a team from where he was transferred by French club Castres in 2013. After three years followed a transfer to Fédérale 2 side, SC Graulhet. In 2016 he was welcomed by Bucharest side, CSM where he played for two seasons. Starting with 2018–19 season, Mario was signed by Constanța side, Tomitanii. After just one season he moved to Steaua in Bucharest. He also played for the Romania national under-20 rugby union team.