Isanlu Isin or Isanlusin is an ancient town in Isin LGA of Kwara State, Nigeria. Isin LGA of Kwara State was created from the old Irepodun Local Government Area in 1996 with the headquarters at Owu-Isin. Notable towns in Isin are Isanlu Isin, Ijara Isin, Owu Isin, Iwo, Oke-Aba, Oke-Onigbin, Alla, Edidi, Odo-Eku, Oba, Iji, Pamo, Oponda, Igbesi, Eleyin, Kudu-Owode, to mention but few. Collectively, these towns are today located in Isin Local Government area of Kwara State. The present ruler of Isanlu Isin also referred to as Olusin, is Oba Solomon Oluwagbemiga Oloyede.