Gaurishankar Hirachand Ojha (15 September, 1863– 17 April, 1947), born in Rohida village of Sirohi District, was a historian from the Indian state of Rajasthan.

A prolific author, he wrote several books ( in Hindi ) on the history of Rajasthan and other historical subjects.

Subsequent historians from Rajasthan have referred to him as Guruvara Mahamahopadhyaya (e.g. Dasharatha Sharma in Early Chauhan Dynasties).

Histories of the princely states of Udaipur, Jodhpur, Bikaner, Dungarpur, Banswara released over a twelve-year period (1929–1941).

A 1928 lecture series at the Hindustani Akademi, Allahabad was published as Madhyakalina Bharatiya Sanskriti[1] and later translated into Urdu.