José Rizo Castellón (27 September 1944 – 23 April 2019) was a Nicaraguan politician, affiliated with the Constitutional Liberal Party (PLC).

Rizo was a lawyer trained at the Universidad Centroamericana of Managua in Nicaragua; he also studied in the London School of Economics.

[1] Rizo was nominated as the PLC's presidential candidate for the 2006 election in which he finished in third place behind Daniel Ortega and Eduardo Montealegre, receiving 25.11% of the vote.

[2][3] José Antonio Alvarado was his vice-presidential running mate.

He died of a terminal illness on 23 April 2019 in Santiago, Chile, at the age of 74.