He was preceded in death by his parents, Francisco Collazo Alvarez and Maria de Jesus Collazo Villarreal; brothers, Enrique, Hector, and Mario Collazo.
He is survived by his wife Anita A. Collazo; children and spouses, Ana Maria Ancira and husband Jose Maria, Hector Collazo and wife Brenda, Nancy Morales and husband Edward, Leandro Collazo Jr. and wife Sylvia, Victor Collazo, Jessica Gellhausen and husband William, Jorge Collazo and wife Brooke; 17 grandchildren and 3 great grandchildren; brothers and sisters, Francisco Collazo and wife Concepcion, Rogelio Collazo and wife Ericilia, Jesus Collazo, Mryna Collazo de Calderon, Guadalupe Collazo de Trevino and husband Juan, Concepcion Collazo de Guajardo and husband Armando, Maria de Jesus Collazo de Rodriguez and husband Roque, and Maria de Lourdes Collazo de Alvarado and husband Marcelino.