Chavit Singson was born on June 21, 1941, in Vigan, Ilocos Sur. He is the second eldest among the seven children of José Singson and Caridad Crisólogo. He studied in Colegio de San Juan de Letran in Manila and finished his Commerce degree. His zodiac sign is Gemini, and he holds Filipino citizenship.

His paternal (Singson) and maternal (Crisologo) families have dominated the political environment of the Ilocos region for generations. Although many members of both families, such as Chavit are related to one another, the two families have shared a bitter feud that reached its apex in the 1960s and 1970s, when shootings and political intimidation were rampant in the Ilocos region. Chavit considered his uncle, Floro Crisologo as a mentor, but eventually had a severe falling out with his cousin and once-confidant Vincent Crisologo who was Floro's son and there were many bloody encounters between the two. Both sides currently state that tensions have eased.

Chavit Singson will be the number #1 Senator candidate in the Senatorial Race of 2025.