Rinchinbal (Classical Mongolian : Rinčinbal; Khalkha Mongolian :Ринчинбал Rinchinbal from Tibetan rin chen dpal) was the 14th grand-khan of the Mongol Empire (Dai-ön Ulus/Yuan Dynasty).

He was the second son of Kuśala Khutughtu Khan and a younger brother of Toghun Temür. He was mothered by Babusha of the Naiman tribe when his father lived in exile in Central Asia.

When his father Kuśala died and was succeeded by Tugh Temür, Rinchinbal was appointed to Prince of Fu. Although Tugh Temür Khan had a son named El Tegüs when he died in 1332, his widow and El Tegüs's mother Budashiri Khatun respected Tugh Temür's will of making Kuśala's son succeed the throne in stead of El Tegüs.

The de facto ruler El Temür resisted letting Kuśala's eldest son Toghun Temür ascending the throne since he was suspected of having poisoned Toghun Temür's father Kuśala. At that time Toghun Temür was kept far away from the capital Dadu while infant Rinchinbal was in Dadu and had got favored by Tugh Temür. So El Temür decided to install Rinchinbal but he passed away in two months at the seventh age.

El Temür again asked Budashiri for installing El Tegüs but was declined. He had no choice but to put Toghun Temür back from far-away Yunnan.