The Legislative districts of Ilocos Norte are the representations of the province of Ilocos Norte in the of the Philippines. The province is currently represented in the lower house of the Congress of the Philippines through its first and second districts.
The first and second districts of Ilocos Norte are among the original representative districts from 1907 which has never changed in territorial coverage, along with the first districts of Albay, of Ilocos Sur and of Iloilo.
The province has been divided into two districts since 1907. When seats for the upper house of the Philippine Legislature were elected from territory-based districts between 1916 and 1935, the province formed part of the first senatorial district which elected two out of the 24-member senate.
In the disruption caused by the Second World War, two delegates represented the province in the National Assembly of the Japanese-sponsored Second Philippine Republic: one was the provincial governor (an ex officio member), while the other was elected through a provincial assembly of KALIBAPI members during the Japanese occupation of the Philippines. Upon the restoration of the Philippine Commonwealth in 1945, the province continued to comprise two representative districts.