Kurtha Assembly constituency is an assembly constituency in Arwal district of Bihar.

It is the part of Jahanabad (Lok Sabha constituency).

In Kurtha constituency, Kushwaha, Yadav and Bhumihar voters are descisive in ensuring victory of a candidate, due to their numerical preponderance.

In 1969, the Shoshit Samaj Party leader, Jagdev Prasad, who was also called 'Lenin of Bihar', won from this assembly constituency.

In 2020, however, he was defeated by Bagi Kumar Verma of Rashtriya Janata Dal.