Dharmathakur (also called Dharma Thakur, Dharmaraj or simply Dharma) (Bengali: ধর্মঠাকুর) is a Hindu god worshipped by villagers in the traditional Rarh region in the present day Indian state of West Bengal as one of their special village gods (gram devata). He is represented by a shapeless stone daubed with vermillion and is normally placed under a tree or placed in the open, but sometimes enshrined in a temple. The worship takes place in the months of Baisakh, Jaistha and Asarh on the day of full moon and sometimes on the last day of Bhadro. Dharmathakur is worshipped mainly by castes Bauri, Bagdi, Hari, Dom etc.
Dharmathakur has been linked with many gods such as Sun-god Surya, Varuna, Vishnu, Yama, Shiva and even with Buddhism. Fundamentally, it all started with the magical beliefs related to harvesting in the primitive days and thereafter layers of Aryan Hindu and Buddhist beliefs transformed it in many ways at different places and has now become too complex to trace its roots properly.
Suniti Kumar Chatterji says, “Dharma who is however described as the supreme deity, creator and ordainer of the Universe, superior even to Brahma, Vishnu and Shiva and at times identified with them, and he has nothing of the abstractions of Buddhist Dharma about him.” He has further opined that the songs and dances linked with Gajan of Dharma is clearly non-Aryan in origin. It could be Dravidian or Tibeto-Chinese.