Mabalacat, officially Mabalacat City, is a component city in the province of Pampanga, Philippines. According to the 2024 census, it has a population of 306,594 people.

Mabalacat is in the urban core of Metro Clark, also known as Metro Angeles, an urban area in Pampanga. This area is considered the industrial and residential heartland of Central Luzon. Metro Clark is also identified as a regional center by the national government.

The name was derived from the indigenous Negrito word mabalacat meaning "place of balakat", a type of flowering buckthorn tree which was once abundant in the area.

Prior to 1712, Mabalacat was a barrio of Bambang (now Bamban, Tarlac). It became a separate town in 1792 and was named after the abundant balakat tree (Ziziphus talanai), a fourth-class timber tree with bark possessesint antimicrobial properties. Originally an Aeta settlement, the area was a virtual forest of the trees, giving its Kapampangan name the meaning "full of balacat." The city’s name is also reminiscent of the Maranao Mababaapalaqat, which means "short ladder".

In 1853, Mabalacat had a population of 2,611 in four barangays: Babangdapu, Duquit, Malabni, and Paglimbunan. By 1903, its population increased to 7,049 across 19 barangays of were Bical, Bundagul, Dapdap, Dau, Dolores, Iba, Mabiga, Mamatitang, Mangalit, Matas, Mawaque, Paralayunan, Poblacion, Quitangil (later renamed San Francisco), San Joaquin, Santa Ines, Santa Maria, Sapang Balen, and Sapang Biabas. In 1948, Mabalacat's barangays increased to 20 with the addition of Fort Stotsenburg.

In 1858, the Comandancia Militar of Tarlac was established by Governor-General Fernando Norzagaray y Escudero due to lawlessness and depredation perpetrated by the Aetas (derogatorily called balugas). The Pampanga towns of Bamban, Capas, Concepcion, Victoria, Tarlac, Magalang, Porac, and Floridablanca were grouped in this Comandancia. Mabalacat was excluded from this alongside the Comandancia Político-Militar of Porac established in 1861.

The former municipality was officially upgraded to a city through Republic Act 10164 authored by Carmelo Lazatin Sr. following a referendum on July 21, 2012, and became the third in Pampanga after Angeles City and San Fernando. It is home to roughly most of the Clark Freeport Zone, the rest in nearby Angeles, where the main gate is located. Clark International Airport, as well as the numerous hotels, casinos, golf courses, and resorts in Clark Freeport, are mostly situated in Mabalacat.

Mabalacat has a land area of 83.18 square kilometers (32.12 sq mi). It is 93 kilometers (58 mi) from Manila, 10 kilometers (6.2 mi) from Angeles, and 27 kilometers (17 mi) from the provincial capital, San Fernando.