Mularaja (r. 1175 – 1178 CE), also known as Bala Mularaja ("Child Mularaja"), was an Indian king from the Chaulukya dynasty of Gujarat. He ruled the present-day Gujarat and surrounding areas from his capital Anahilapataka (modern Patan). He ascended the throne as a child, and his mother Naikidevi acted as the regent during his short reign. The Chaulukyas repulsed a Ghurid invasion during his reign. The Paramara king Vindhyavarman made attempts to evict the Chaulukyas from Malwa during his reign, and succeeded in regaining control of Malwa either during Mularaja's lieftime or shortly after his death.