Kameshwar Singh Darbhanga Sanskrit University (KSDSU) is a state university located at Darbhanga, Bihar, India, dedicated to the teaching and promotion of Sanskrit.

[citation needed] KSDSU was established in 1961, with the scholar Umesh Mishra as its first Vice-Chancellor.

The then Education Minister of unified Bihar, Satyendra Narayan Sinha, announced the instigation of the university.

Kameshwar Singh donated his ancestral Anand Bagh Palace to the government of Bihar as a university for the promotion of Sanskrit.

Sanskrit scholar and poet Ram Karan Sharma was the vice chancellor from 1974 to 1980.