Honesto "Nes" Flores Ongtioco is a Filipino bishop of the Roman Catholic Church. He is the first and only Bishop of Cubao, and also served as Apostolic Administrator of the Diocese of Malolos from May 12, 2018 to August 21, 2019.

The Roman Catholic Diocese of Cubao is a diocese of the western Latin Church of the Catholic Church in district of Cubao in Quezon City, in northern Metro Manila, Philippines. The diocese was created by Pope John Paul II on June 28, 2003 from the ecclesiastical district of Cubao of the Roman Catholic Archdiocese of Manila. It was canonically erected on August 28, 2003, with the installation of Honesto Flores Ongtioco as the first Bishop of Cubao. The Blessed Virgin Mary, under the title Immaculate Conception, is the principal patroness of the diocese.