Teonthar is a town and a nagar panchayat in Rewa district in the Indian state of Madhya Pradesh.

Venvanshi Maharajas of Singrauli ruled Teonthar as part of their territories till 1947.

According to the book Kyoti ki Garhi by historian Ramsagar Shastri,[citation needed] Maharaja Kot Singh of Singrauli expanded the kingdom towards the north in the beginning of the ninth century and conquered the area up to Arail Jhunsi and conquered small kingdoms.

There were many small kingdoms on the sprawling land north of Tyonthar and south of Jhunsi.

The Venvanshi rulers of Singrauli captured Jhunsi and then defeated the small Kol and Bhurtiya kings and took control of them and started ruling by making Tyonthar their stronghold in the north east.

Due to its location and elevation, the area around Teonthar is flood prone.