Kadiolo is a town and rural commune located in the Sikasso Region of southern Mali. It serves as the seat of the Kadiolo Cercle and is situated approximately 85 km south of Sikasso.
The town's geographic position places it near several international boundaries, specifically 13 km north of the Ivory Coast border and 30 km west of the Burkina Faso border. The commune of Kadiolo encompasses an area of 783 square kilometers, which includes the town itself and 19 villages. According to the 2009 census, the population of the area was 59,932.