Celestino Iriarte Miró (December 9, 1887 – January 1967) was a Puerto Rican politician and longtime Senator.
Iriarte ran for the Puerto Rico House of Representatives in 1917 for the Union Party, but lost.
Iriarte was member of the Commission of Reforms to the Organic Act formed by President Franklin D. Roosevelt.
In 1951, he was also member of the Constituent Assembly that created the Estado Libre Asociado, representing the Statehood Party[which?][vague].
He was buried at the Santa María Magdalena de Pazzis Cemetery in San Juan, Puerto Rico.