Rajkot (Gujarati: રાજકોટ Rājkot ) is the fourth largest city in the state of Gujarat, India, after Ahmedabad, Surat and Vadodara. Rajkot is the 23rd urban agglomeration in India, with a population more than 1.6 million as on 2012. Rajkot is ranked 22nd in The world's fastest growing cities and urban areas from 2006 to 2020.

Rajkot is a city of Gujarat state in India and administrative headquarters of the Rajkot District, 245 km from the state capital Gandhinagar, located on the banks of the Aji River and Nyari River. Rajkot was the capital of the then Saurashtra state from 15 April 1948 to 31 October 1956 before merging in bilingual Bombay State on 1 November 1956. Rajkot was merged into Gujarat State from bilingual Bombay state on May 1, 1960.

Rajkot has been under many different rulers since it was founded. Rajkot has a long history and played a significant part in Indian independence movement. Rajkot was one of the main trade centre's in Saurashtra.

Rajkot was founded by the then ruler of Sardhar 1607 A.D. on the west bank of Aji River, in the middle of Saurashtra. Vibhaji Ajoji was the grandson of Jam Sataji of Nawanagar, the present day Jamnagar. Rajkot was named in honor of its co-founder.