Maharajadhiraj Mirza Maharao Sir Khengarji III Sawai Bahadur GCSI GCIE (23 August 1866 – 15 January 1942) was a progressive and one of the longest ruling monarchs and also the longest ruling king of the Princely State of Kutch from 1875 to 1942.

He ascended the throne on 3 January 1876 and reigned under a Council of Regency until he came of age, 11 August 1884 and was invested with full ruling powers on 14 November 1884.

He appointed Shri Seth Ranmalsha Askaran Sisodia of Anjar as Diwan of Cutch state.

At the pinnacle of the Jadeja clan of Rajputs, he advanced his state drastically over the sixty-six years of his reign, modernising it and bringing it forth into the 20th century.

During the latter part of Queen Victoria's reign, Sir Khengarji came to be appointed as an aide de camp to the Queen-Empress in her declining years, which excited some jealousy amongst the officials of the Government of India.