Ramsagar (Bengali: রামসাগর) is a small lake located in the village Tajpur in Dinajpur District, Bangladesh.

[1][2] It is the most-frequently visited tourist destination in Dinajpur.

[3] It is situated about 8 kilometers south of the Dinajpur town.

It was created in the mid-1750s, funded by Raja Ram Nath, after whom the lake is named.

The excavation cost 30,000 taka at that time, and about 1.5 million labourers took part in the project.