Mehlog or Mah(i)log was a princely state of India before and during the colonial British Raj.

Later it was merged into the Indian state of Himachal Pradesh.

Earlier its rulers were ruling near Kalka (in Haryana) when Mohamad Gauri attacked and they shifted to Mahlog area.

It was subject to Bilaspur State during the late 18th century.

[2] The rulers of the state bore the title Thakur.