The Pulangi River (Cebuano pronunciation IPA [puˈlaŋi]), also spelled Pulangui, is the longest river in Bukidnon. It is one of the major tributaries of the Rio Grande de Mindanao, an extensive river system in Mindanao, Philippines. It has a length of 320 kilometers and traverses through majority of the cities and municipalities of Bukidnon from its source in Barangay Kalabugao, Impasugong, Bukidnon.