Cabanatuan, officially known as the City of Cabanatuan (Tagalog: Lungsod ng Cabanatuan; Ilocano: Siudad ti Cabanatuan; Kapampangan: Lakanbalen ning Cabanatuan), is a 1st class component city in the province of Nueva Ecija, Philippines. According to the 2020 census, it has a population of 327,325 people,  making it the most populous city in Nueva Ecija and the fifth-most populous in Central Luzon. After the campaign for the city's designation as a Highly Urbanized City failed, a motion was made to convert the city into a lone district instead.