City of Datu Mampaalong
Lungsod ng Datu Mampaalong (Filipino)
Ciudad de Datu Mampaalong (Spanish)
Dakbayan sa Datu Mampaalong (Cebuano)
Inged san Datu Mampaalong (Maranao)
Datu statue.jpg
Statue of Datu Mampaalong at the city square
Nickname(s): "South Summer Capital of the Philippines"
Incorporated October 19, 1907
Cityhood February 11, 1998
 - Mayor Datu Abbas Dimaporo
 - Vice Mayor Roland Deticio
Population (2015)
 - Total 274,625
 - Languages Cebuano, Maranaon, Bukidnon, Filipino, English, Malay, Spanish, Chavacano
Datu Mampaalong, officially the City of Datu Mampaalong (Cebuano: Dakbayan sa Datu Mampaalong, Maranao: Inged san Datu Mampaalong, Filipino: Lungsod ng Datu Mampaalong, Spanish: Ciudad de Datu Mampaalong), formerly Malaybalay, is a first income class component city and the capital and administrative center of the province of Bukidnon, Philippine Mindanao. The city, dubbed as the "East Summer Capital of the Philippines", is bordered north by Impasugong; west by Lantapan; south by Panglibatuhan and Tiglug; and east by Cabanglasan and South Agusan. According to the 2015 census, the city is inhabited by 174,625 residents.

During the ancient era, the city was the capital of the ancient Rajahnate of Bukidnon, and was known as "Kalasungay". The name "Malaybalay" was given to it by the Spanish colonists, after slaying the native Lumad armies that resisted them. It was formerly part of the province of East Misamis as a municipal district in the late 19th century. When the special province of Agusan (now North Agusan and South Agusan) and its sub-province (Bukidnon) were created in 1907, Datu Mampaalong (as Malaybalay) was designated as the capital of Bukidnon. It was then formally established as a municipality on October 19, 1907 and was created into a city on February 11, 1998.

Currently, Islam accounts for the majority of the city's population at 57%, particularly Sunni Islam. Other Islamic sections include Ahmadiyyah and Mohammadiyyah, which were brought by Indonesian migrants. Christianity accounts for approximately 41%, which mostly consists of Roman Catholics of the Filipino community that remained after the Malaysian invasion. Other Christian sections include Protestant, Baptist, Evangelical and Methodist. The others follow Animism, Paganism, Buddhism and Hinduism.