Hareshwar Nath Mandir
| name | Hareshwar Nath Mandir |
| native_name | हरेश्वर नाथ मंदिर |
| native_name_lang | Maithili |
| deity | Shiva |
| religious_affiliation | Hinduism |
| tradition | Maithil Hinduism |
| festivals | Mahashivratri, Sombari, Narak Niwaran Chaturdashi |
| location | Dwalakh, Madhepur, Madhubani |
| district | Madhubani |
| state | Bihar |
| country | India |
| established | 1858 AD - 1868 AD |
| founded_by | Darbhanga Maharaj Shree Lakshmeshwar Singh Bahadur |
| governing_body | Department of Culture, Government of Bihar |
| functional_status | Protected Monument of Bihar |
Hareshwar Nath Mahadev Mandir ( हरेश्वर नाथ महादेव मंदिर ) is an ancient Hindu Lord Shiva temple in the Mithila region) of Bihar at Dwalakh village of Madhubani district. It is situated on the bank of Bhutahi-Balan river. It is a very beautiful old Shiva temple.
History
It is believed that the temple was built by the Darbhanga Maharaj Shree Lakshmeshwar Singh Bahardur of Darbhanga Raj Kingdom. It was completed between 1858 AD to 1869 AD under the supervision of the then Chief Executive Officer Shree Jhuna Lal Shah of the Kingdom. The Kingdom donated 12 acres of farming land to the temple for the source of fund to run the different religious activities of the temple. On the east side of the temple there is a big pond for bathing purpose of the pilgrims coming to the temple for worship. The temple was included in the list of archeological department as “Protected Heritage Monument of Bihar” in 2015 by the Government of Bihar.