English: The Madangopal Jiu Mandir (Bengali: মদনগোপাল জীউ মন্দির ) is a temple in the village of Mellock, near Samta, Howrah, in the Indian state of West Bengal. The mandir is locally known as Gopaler Mandir.

The temple was built in 1651 CE by the local Zamindar Mukundaprasad Roychowdhury who was a famous wrestler in this region during those times. The mandir was situated on the banks of the river Rupnarayan, now the river changed its course and has now moved further away.

The terracotta ornamented aatchala (roof with 8 slopes) mandir has the idols of of Madangopal (Krishna) with Radha. It is the one of the oldest mandir of the district of Howrah and one of the largest Aatchala styled mandir in West Bengal. The temple is now in ruins. Reconstruction work was started in the early 2010 but stopped midway. The idols are being kept, caring and worshiped by the nearby local family.