Niiro Korehisa served as a bushō during the late Muromachi period.  He was a retainer of the Shimazu clan of Satsuma Province.

Korehisa was born as the third son (or the second son) of Niiro Tadaharu, the fourth head of the Niiro clan.

In 1485, his older brother, Niiro Tadatsugu, upon orders of the main branch of the Shimazu clan, was moved to Obi to prepare defenses against the Hyūga-Itō clan of Hyūga Province.  Korehisa was then assigned to the base of the clan at Shibushi.

In 1474, Shimazu Hisayasu of the Izaku family (a cadet family of the Shimazu), upon orders of the main branch of the family, entered Kushima Castle.  To strengthen ties, Korehisa adopted Hisayasu’s lineal heir, Shimazu Yoshihisa, and had him wed his daughter, Tokiwa.  Yoshihisa thereby became the adopted son-in-law of Korehisa.

In 1484, however, after Hisayasu came into conflict with Tadatsugu regarding the exchange of landholdings, Korehisa sided with Hisayasu and, in 1485, was defeated and killed in action by the army of Shimazu Tadamasa (the eleventh head of the main branch of the Shimazu) who came to the aid of Tadatsugu.