Marius Simionescu (born 5 September 1997) is a Romanian rugby union football player.

He plays as a fullback for professional SuperLiga club, Timișoara Saracens.

[1] He also plays for Romania's national team, the Oaks, making his international debut at the 2017 mid-year rugby union internationals in a match against the Canadian Canucks.

[2] Before joining Timișoara Saracens' youth team, Simionescu played for CSS Unirea Iași.

This biographical article relating to Romanian rugby union is a stub.