Rabia Bala Hatun (Ottoman Turkish: رابعه بالا خاتون, "spring" and "young one"; died January 1324) was the wife of Osman I, the founder of the Ottoman Dynasty.

[2] She was the daughter of Sheikh Edebali and the mother of Alaeddin Ali Pasha of the Ottoman Empire.

From the central government records regarding the property she received at the time of her marriage; the village of Kozağaç in the district of Bilecik, where the dervish hospice of her father was located.

Her father Sheikh Edebali was an influential religious leader in the Ottoman territories.

[8] This complex was built by Orhan Ghazi and later renovated by Abdul Hamid II.