Maria [María] Antonia Castro (10 June 1881 – 16 January 1996) was a verified Spanish supercentenarian who was noted for being Spain's longevity recordholder for 20 years (1996-2016). She was the oldest Spaniard ever, dying at the age of 114 years, 220 days, but she is now second behind Ana Vela-Rubio. She was the world's fifth-oldest person when she died, based on revised historical data. Her case was initially verified by the International Database on Longevity.