Abunda is openly gay and has been in a relationship with partner Elmer "Bong" Quintana since 1983. Although Abunda is a practicing Catholic and Marian devotee, he is a supporter of LGBT rights and same-sex marriage, expressing disagreement with the Church's stand on homosexuality. He denounced the 2016 Orlando Nightclub Shooting, which has been recorded as the deadliest incident of violence against LGBT people in the United States.