Thakur Roshan Singh (executed 20 December 1927 Allahabad Uttar Pradesh) was a great Indian revolutionary.

He hailed from Shahjahanpur, Uttar Pradesh.

He belonged to Hindustan Republican Association (HRA, which after 1928 became the Hindustan Socialist Republican Association or HSRA) that was created to carry out revolutionary activities against the British Empire in India.

He participated in Kakori train robbery and was tried and sentenced to death for the same.

He was a close associate of Pandit Ram Prasad Bismil, Ashfaqulla Khan, Chandrashekar Azad and Shaheed Bhagat Singh.