|Princely State of British India|
|231 km2 (89 sq mi)|
• Union with Dominion
|10 June 1948|
Mohanpur State (Gujarati: મોહનપુર; Hindi: मोहनपुर) was a small princely state belonging to the Mahi Kantha Agency of the Bombay Presidency during the era of the British Raj. It was centered on Mohanpur town, in present-day Sabarkantha district of Gujarat State, and included 52 villages.
A predecessor state was founded around 1227 by an ancestor of the later kings named Thakore Jaspal, but its history is obscure.
Although small in size, Mohanpur was not one of the small states that were merged with Baroda State under the Attachment Scheme in December 1943.
The last ruler was Vinaysinhji Sartansinhji who was born in 1909 and rose to the throne in 1927.  He married and had issue. Thakur Vinaysinhji Sartansinhji signed the instrument of accession to the Dominion of India on 10 June 1948. He died on 9 December 1955.
The rulers of Mohanpur State bore the title Thakur.
Coordinates: 23°27′N 73°4′E / 23.450°N 73.067°E