Saharsa is a city in the Saharsa District in the eastern part of the state of Bihar, India. It is situated near the eastern banks of the Kosi River. It serves as the administrative headquarters for Saharsa District and is also the Divisional Headquarter of the Kosi Division.
The name Saharsa originates from the Sanskrit word Saharsha meaning 'laden with joy'. The city has a significant number of Maithili speakers. Alongside Maithili, Hindi is widely understood and spoken.