Ilobu is a town and the administrative headquarters of Irepodun Local Government Area of Osun State, Nigeria.
It is located in a sparsely forested area and is bounded on the north by Ifon-Osun, on the south by Osogbo, on the east by Oba and on the west by Erin-Osun. It is watered by Ojutu River, Erinle River, Konda River and a few other streams. The town is said to have been founded by Laarosin, a powerful warrior in the Old Oyo Empire. It has a population of about 30,825.