Bacolor, officially the Municipality of Bacolor (Kapampangan: Balen ning Bakúlud; Tagalog: Bayan ng Bacolor), is a municipality in the province of Pampanga, Philippines. According to the 2020 census, it has a population of 48,066 people.

Bacolor is the birthplace of Father Anselmo Jorge de Fajardo, considered the "Father of Kapampangan literature" for writing the 1831 Kapampangan "kumidya" Don Gonzalo de Cordova.

Historical records show that Bacolor has been in existence as a proposed settlement as early as 1571, the same year Manila was founded by the Spanish. The original name of the settlement was Bakúlud, which became Hispanicized as "Bacolor" (cf. Bacolod and Bacoor). The original name is Kapampangan for "high level rocky place" or "plateau."

Bacolor officially became the capital of Pampanga in 1755. According to Spanish chronicler Fray Gaspar de San Agustin, before 1755, Mexico town “es la corte de Pampanga,” while Bacolor “es la capital” and Guagua “es igualmente.” Historian Dr. Luciano Santiago theorizes that before Bacolor was formally recognized as provincial capital, it was already informally functioning as capital, although other provincial administrative offices were elsewhere in Mexico and Guagua.

During the British occupation of Manila, when Manila fell to the British, it became capital of the exiled government of Governor General Simón de Anda y Salazar from October 6, 1762, to May 30, 1764. The provincial offices were temporarily moved to Factoría (now San Isidro, Nueva Ecija). Through a decree of the King of Spain on November 9, 1765, Bacolor became Villa de Bacólor, one of the only three villas in the Philippines and was granted a special coat of arms. Simón de Anda organized an army of natives for the defense of Bacolor and with the aim of recapturing Manila.

Bacolor remained the capital of Pampanga until the provincial seat of government was transferred to neighboring San Fernando in 1904. Moves to transfer the provincial capital to San Fernando actually began as early as 1852 with an expediente from the alcalde mayor. The King of Spain granted the request in a real cedula dated September 11, 1881. Despite royal approval, the transfer was not executed until August 15, 1904, by virtue of Act No. 1204.

The coming of the American colonizers broke up the military form of government and instead political and economic reforms were introduced. A civil form of government was organized and was inaugurated on February 13, 1901, by Com. William H. Taft which took place in the old Escuela de Artes y Oficios de Bacólor, later known as the Pampanga School of Arts and Trade and now the Don Honorio Ventura State University, the first state university in Pampanga.

The first provincial Civil Governor was Don Ceferino Joven and the first Municipal President of Bacolor was Don Estanislao Santos.