Ajmer-Merwara (also known as Ajmir Province, and Ajmer-Merwara-Kekri) was a former province of British India in the historical Ajmer region. The territory was ceded to the British by Daulat Rao Sindhia by a treaty on 25 June 1818. It was under the Bengal Presidency until 1861 when it became part of the North-Western Provinces. Finally on 1 April 1871, it became a separate province as Ajmer-Merwara-Kekri. It became a part of independent India on 15 August 1947 when the British left India.
The province consisted of the districts of Ajmer and Merwara, which were physically separated from the rest of British India forming an enclave amidst the many princely states of Rajputana. Unlike these states, which were ruled by local nobles who acknowledged British suzerainty, Ajmer-Merwara was administered directly by the British.