Sir Lakshman Singh KCSI GCIE (7 March 1908 – 6 June 1989) was the last ruling Maharawal (Maharaja) of the princely state of Dungarpur from 1918 to 1989, a former MP in the Rajya Sabha and speaker of the Rajasthan Legislative Assembly from July 1977 to June 1979.
Maharawal Sir Lakshman Singh was born on 7 March 1908 at Udai Villas, Dungarpur, the eldest son and heir apparent of Maharawal Sir Bijaya Singh of the princely state of Dungarpur. He was the elder brother of Nagendra Singh, later the President of the International Court of Justice. He succeeded to the throne in 1918 at the age of 10 following the death of his father, ruling under the regency of the Dungarpur political agent until he came of age in 1928.
From 1931 to 1947, Lakshman Singh was a member of the standing committee of the Chamber of Princes, and was knighted as a Knight Commander of the Order of the Star of India (KCSI) in the 1935 King's Birthday and Silver Jubilee Honours. On 14 August 1947, he was appointed as the last Knight Grand Commander of the Order of the Indian Empire (GCIE). Following Independence, he established an interim legislature for Dungarpur, then with his fellow rulers formed the United State of Rajasthan on 25 March 1948. The following year, this became the Greater Rajasthan Union to which Dungarpur acceded on 30 March. From 1952 to 1958, Sir Lakshman served as an MP for Aspur in the Rajya Sabha, then became President of the Swatantra Party in Rajasthan from 1961 to 1969. From 1962 until his death, he also served as President of the All-India Kshatriya Mahasabha and as an MLC for Chittor in the Rajasthan Legislative Assembly, serving as speaker from 1977 to 1979; he also served as the leader of the Opposition from 1962 to 1979. He also served as president of Akhil Bharatiya Kshatriya Mahasabha from 1960 till his death.