Blas Nicolás Riquelme Centurión (3 February 1929 – 2 September 2012) was a Paraguayan politician and businessman.

[4] He was leader of the Movimiento Tradicionalismo Democrático (TRADEM), and one of the major financiers of the Colorado Party.

[6] As a businessman, Riquelme was director/president of a number of companies, including Cereales S.A. (flour and cereals); Cervecera Asunción S.A. and Cervecera Itapúa S.A. (beer); Cadena Real S.A. (supermarkets); Campo Morumbí S.A. (farming); and Cristalera Asunción S.A. (glass).

In 1985 he ordered the removal of 100 Mbayá people from his 75,000 hectare landholding in the Alto Paraná Department;[7] he had previously pressured them for ten years to leave their ancestral Paso Romero community, after he had purchased the property.

[6] In 2012 the violent removal of occupying farmers from Riquelme's land in the Canindeyú Department sparked the impeachment of Fernando Lugo.