Constantino Urbieta Sosa (12 August 1907 – 12 December 1983) was a Paraguayan-Argentine footballer that played as a midfielder. Born in Asunción, Urbieta started his career in Club Nacional before playing for Argentine clubs C.A. Tigre, Godoy Cruz Antonio Tomba, San Lorenzo de Almagro and C.A. Estudiantes. Urbieta Sosa was part of the Paraguay national football team in 1931 and also played for the Argentina national team that participated in the 1934 FIFA World Cup, being the second foreign-born player to play for Argentina a FIFA World Cup.