Martina Fernández Vila (born 1 October 2004) is a Spanish professional footballer who plays as a defender or midfielder for Women's Super League club Everton, on loan from Barcelona, and Spain under-23 national team.

In her first year with the club she stayed with her family in the province of Girona, over 150 kilometres (93 miles) from Barcelona, and travelled with other players to train.

Often ignoring the toll this took, her family then asked that she be supported to live at a school in Barcelona; after half a season of this situation, the COVID-19 pandemic forced her back to Ordís.

When the club opened Oriol Tort Training Centre, including a girls' student dormitory as part of La Masia, in 2021, one of the nine places was given to Fernández.

[4][5] She made her UEFA Women's Champions League debut on 13 December 2023 against Rosengård, and scored her first goal for Barcelona in the 92nd minute of this game.