Icaza is a Spanish surname. People with this surname include:
Icaza Francisco Icaza Emilio Álvarez Icaza María Elena Medina-Mora Icaza María Daniela Icaza Enrique Carral Icaza Alejandro Carabias Icaza Ana Villamil Icaza Eduardo Tomás Medina-Mora Icaza Jorge Icaza Coronel Ernesto Icaza Sánchez Michele Sensi-Contugi Ycaza
de Icaza Amelia Denis de Icaza Amelia Denis de Icaza (corregimiento) Carmen de Icaza, 8th Baroness of Claret Francisco A. de Icaza Miguel de Icaza
Ycaza Ricardo Ycaza