Alcala, officially the Municipality of Alcala, is a 3rd class municipality in the province of Cagayan, Philippines. According to the 2020 census, it has a population of 41,295 people.  Alcala is home to the Saint Philomene Church, regarded as the widest church in the Cagayan Valley. Alcala is the birthplace of Senator Melecio Arranz of 1st Senatorial District of the Philippines. Alcala is 35 kilometres (22 mi) from Tuguegarao and 516 kilometres (321 mi) from Manila.