Santa Catarina Pinula is a town, with a population of 70,982 (2018 census) and a municipality in the Guatemala Department of Guatemala. Its name, according to Guatemalan colonial historian Francisco Antonio de Fuentes y Guzmán in his book Recordación Florida comes from:
Santa Catarina: the name of it saint patron Catherine of Alexandria
Pinula: from pipil "Flour of water" ("Pinul": Flour of Pinole and "Ha": Water). This may come from the Mexican natives who came alongside Alvarado's forces.