José María Castellanos Ledo (8 April 1909 – 21 July 1973), nicknamed Chitín, was a Spanish engineer and footballer who played as a defender for Athletic Bilbao.
[1][2][3][4] He spent his entire career at Athletic, his hometown club, being a member of the great side coached by Fred Pentland that won two La Ligas and three Copa del Rey titles in the early 1930s.
[5] He made his official debut in a Biscay Regional Championship match against Barakaldo CF on 30 September 1928, helping his side to a 4–0 win.
[1][4] He played in the inaugural season of La Liga in 1929, making his debut on its second matchday against RCD Espanyol on 17 February 1929, helping his side to a 9–0 win.
[11] Having studied Industrial Engineering, he dedicated himself professionally to working in the Altos Hornos de Vizcaya, which was the largest company in Spain for much of the 20th century, employing 40,000 workers at its height.