Some 130 to 195 languages are spoken in the Philippines, depending on the method of classification. Almost all are Malayo-Polynesian languages native to the archipelago. A number of Spanish-influenced creole varieties generally called Chavacano along with some local varieties of Chinese are also spoken in certain communities. Tagalog and Cebuano are the most commonly spoken native languages. The 1987 constitution designates Filipino, a standardized version of Tagalog, as the national language and an official language along with English. Filipino is regulated by Commission on the Filipino Language and serves as a lingua franca used by Filipinos of various ethnolinguistic backgrounds.

Republic Act 11106 declares Filipino Sign Language or FSL as the country's official sign language and as the Philippine government's official language in communicating with the Filipino Deaf.

While Filipino is used for communication across the country's diverse linguistic groups and in popular culture, the government operates mostly using English. Including second-language speakers, there are more speakers of Filipino than English in the Philippines. The other regional languages are given official auxiliary status in their respective places according to the constitution but particular languages are not specified. Some of these regional languages are also used in education.

The indigenous scripts of the Philippines (such as the Kulitan, Tagbanwa and others) are used very little; instead, Philippine languages are today written in the Latin script because of the Spanish and American colonial experience. Baybayin, though generally not understood, is one of the most well-known of the Philippine indigenous scripts and is used mainly in artistic applications such as on current Philippine banknotes, where the word "Pilipino" is inscribed using the writing system. Additionally, the Arabic script is used in the Muslim areas in the southern Philippines.

Spanish was the official language of the country for more than three centuries under Spanish colonial rule, and became the lingua franca of the Philippines in the 19th and early 20th centuries. In 1863, a Spanish decree introduced universal education, creating free public schooling in Spanish. It was also the language of the Philippine Revolution, and the 1899 Malolos Constitution effectively proclaimed it as the official language of the First Philippine Republic. National hero José Rizal wrote most of his works in Spanish. Following the American occupation of the Philippines and the imposition of English, the use of Spanish declined gradually. Spanish then declined rapidly because of the Japanese occupation in the 1940s.

Under the U.S. occupation and civil regime, English began to be taught in schools. By 1901, public education used English as the medium of instruction. Around 600 educators (called "Thomasites") who arrived in that year aboard the USAT Thomas replaced the soldiers who also functioned as teachers. The 1935 Constitution added English as an official language alongside Spanish. A provision in this constitution also called for Congress to "take steps toward the development and adoption of a common national language based on one of the existing native languages." On November 12, 1937, the First National Assembly created the National Language Institute. President Manuel L. Quezón appointed native Waray speaker Jaime C. De Veyra to chair a committee of speakers of other regional languages. Their aim was to select a national language among the other regional languages. Ultimately, Tagalog was chosen as the base language on December 30, 1937, on the basis that it was the most widely spoken and developed local language. Quezon himself was born and raised in Baler, Aurora, which is a native Tagalog-speaking area.

In 1939, President Manuel L. Quezon renamed the Tagalog language as Wikang Pambansa ("national language" in English translation). The language was further renamed in 1959 as Pilipino by Secretary of Education José E. Romero. The 1973 constitution declared the Pilipino language to be co-official, along with English, and mandated the development of a national language, to be known as Filipino. In addition, Spanish regained its official status when President Ferdinand Marcos signed Presidential Decree No. 155, s. 1973.

The 1987 Constitution under President Corazon Aquino declared Filipino to be the national language of the country. Filipino and English were named as the country's official languages, with the recognition of regional languages as having official auxiliary status in their respective regions (though not specifying any particular languages). Spanish and Arabic were to be promoted on an optional and voluntary basis. Filipino also had the distinction of being a national language that was to be "developed and enriched on the basis of existing Philippine and other languages." Although not explicitly stated in the constitution, Filipino is in practice almost completely composed of the Tagalog language as spoken in the capital, Manila; however, organizations such as the University of the Philippines began publishing dictionaries such as the UP Diksyonaryong Filipino in which words from various Philippine languages were also included. The present constitution is also the first to give recognition to other regional languages.