Alfonso Portugal Díaz (21 January 1934 – 12 June 2016) was a Mexican footballer. He played as defender for Mexico in the 1958 FIFA World Cup. He was born in Mexico City. Portugal captained Club América to the 1965–66 Mexican Primera División title. He also played for Club Necaxa. In 1967 he appeared in one match for the Chicago Spurs of the NPSL.