Communist Party of the Philippines

The Communist Party of the Philippines (CPP) (Filipino: Partido Komunista ng Pilipinas) is a far-left, Marxist–Leninist–Maoist revolutionary organization and communist party in the Philippines, formed by Jose Maria Sison on 26 December 1968. It is designated as a terrorist group by the United States Department of State together with Sison and its armed wing New People's Army (NPA) in 2002. The European Union renewed its terrorist designation on the organization in 2019, though a 2009 ruling by the EU's second highest court delisted Sison as a "person supporting terrorism" and reversed a decision by member governments to freeze assets. According to the US' Central Intelligence Agency (CIA) World Factbook, the CPP and the NPA aims to destabilize the Philippines' economy and overthrow the national government.

Philippine president and Sison's former student Rodrigo Duterte declared the group a terrorist organization in 2017, though the CPP-NPA has not yet been legally declared as a terrorist group by Philippine courts.

The CPP has been fighting a guerrilla war against the state since its establishment. Although its ranks initially numbered around 500, the party grew quickly, supposedly due to the declaration and imposition of martial law by former president and dictator Ferdinand Marcos during his 21-year rule. By the end of Marcos rule in the country, the number of combatants had expanded to include more than 10,000 fighters. In a speech before the US Congress in 1986, President Corazon Aquino accredited the party's rapid growth as being caused by Marcos' attempts to stifle it with the "means by which it grows" with his establishment of martial law, suggesting that other governments view it as a lesson when dealing with communist insurgencies.

In 2019, Sison claimed that the number of its members and supporters is growing, despite claims by the Philippine government that the organization is close to being destroyed. The organization remains an underground operation, with its primary goals being to overthrow the Philippine government through armed revolution and remove U.S. influence over the Philippines. It consists of the National Democratic Front, a coalition of other revolutionary organizations in the Philippines with aligning goals; the Kabataang Makabayan, which serves as its youth wing; and the New People's Army, which serves as its armed wing.

The CPP claims to be the largest Marxist–Leninist–Maoist formation in the world, with the organization claiming to have 150,000 members, while other sources claim the membership to have peaked at 25,000 members in the late 1980s with membership dwindling ever since.