Ramón Ignacio Fernández Arias (Spanish pronunciation: [raˈmon iɣˈnasjo feɾˈnandes], born 3 December 1984) is an Argentine-Chilean footballer who plays as a midfielder for San Antonio Unido in the Segunda División Profesional de Chile.

A product of Estudiantes de la Plata youth system, Fernández joined its reserve team in January 2003 but spent most of the next five years on loan at several Argentine sides, including Sarmiento, Club Sportivo Ben Hur, Defensa y Justicia and Club Atlético Atlanta, before being loaned again to the Croatian side NK Rijeka in July 2008.

After 10 years playing in the Chilean football, in 2022 he returned to Argentina joining Atlanta where he had been a leading figure in 2008.

[1] In June 2022, he returned to Chile and joined Deportes Iquique in the Primera B.

[4] In 2024, he signed with San Antonio Unido in the Segunda División Profesional de Chile.