Filipino orthography specifies the correct use of the writing system of the Filipino language, the national and co-official language of the Philippines.

The Commission on the Filipino Language (CFL), also referred to as the Komisyon sa Wikang Filipino (KWF), is the official regulating body of the Filipino language and the official government institution tasked with developing, preserving, and promoting the various local Philippine languages. The commission was established in accordance with the 1987 Constitution of the Philippines.