Caba, officially the Municipality of Caba (; ), is a 4th class municipality in the province of La Union, Philippines. According to the 2020 census, it has a population of 23,119 people. Caba was a part of the municipality of Aringay until the late-19th century when it was permanently separated to form its own entity. It has a land area of . History History records show that this municipality used three names interchangeably: Caba, Cava, and Caua. According to a local historian Pedro Manongdo, two tales have persisted on how the town got his name. One group referred to an incident when a Spaniard asked an inhabitant the name of the place. The youth mistook the question as an inquiry to the name of the animal he was herding and answered “Cava.” The repetition of the name ended with Cava and later Caba. Another story sustained that Caba was the name given by a group of immigrants from barrio Caba, San Carlos, Pangasinan who settled in the community in the later years of the 16th century. In memory of the place where they came from, they named the new settlement CABA. Caba was founded as a settlement in 1598 by Augustinian Fathers with Don Agustin dela Cruz as the “first man to rule.” The settlement developed into barangay in 1692 with don Luis Manongdo as the Cabeza de barangay. It became a town in 1783 with Don Domingo Aragon as gobernadorcillo. Two other historians however have claimed different dates on the founding of Caba as a town. On one hand, Father Jose Braganza, SVD claims that Caba was founded in 1745 along with Aringay. On the other hand, Julian Martin claims that Caba was founded in 1844. In 1903, the Philippine commission reorganized the administrative and territorial set-up of municipalities in the country. Due to a meager population of financial difficulties, some smaller municipalities were integrated. Caba was integrated with Aringay while Santo Tomas to Agoo. In 1907, Executive Order no. 41 was issued which provided that Caba be separated from Aringay. The order took effect on January 1, 1908, thus Caba again became a regular municipality with Francisco Sobredillo as Chief Executive. Caba is the birthplace of Diego Silang, the inspiration and the leader of the Ilocos Revolt of 1762-1763. During the Spanish period, Silang established an independent rebel government in Northern Luzon and agitated for reforms in and