The Diocese of Piazza Armerina (Latin: Dioecesis Platiensis) is a Latin Church diocese of the Catholic Church in Sicily.

Its first bishop was Girolamo Aprile e Benso.

In 2013, in the diocese of Piazza Armerina, there was one priest for every 1,588 Catholics.

[citation needed] This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed.

New York: Robert Appleton Company.