Maharaj Kumar (or Maharajkumar) means son of a Maharaja; the female equivalent is Maharaj Kumari (Maharajkumari): daughter of a Maharaja.
Patvi Namdar Maharajkumar Shri Udaybhansinhji Natwarsinhji Jethwa Sahib (born 6 October 1901, Shrinagar, Gujarat - died 1977, Bombay), was the last Maharajkumar or Yuvraj of Jethwa dynasty of Princely State of Porbandar.
Maharajkumar Shri Hemant Singh, who succeeded his grandfather as Maharaj Rana of Dholpur.