Fernando Quintanilla Barañano (born 13 November 1964), also known by the nickname Txirri, (sometimes spelled Chirri) is a Spanish former professional footballer who played as a central defender. He featured in La Liga for Athletic Bilbao but spent most of his playing career in the second and third divisions, including spells with CD Málaga and Real Betis. In later years he spent time as a technical staff member for clubs including Athletic Bilbao and Real Sociedad.