Mir Qasim (also spelled Mir Kasim; full name: Mir Kasim Ali Khan) (died May 8, 1777) is the Nawab of Bengal from 1760 to 1763.
He is installed as Nawab with the support of the British East India Company, replacing Mir Jafar, his father-in-law, who had himself been supported earlier by the East India Company after his role in the Battle of Plassey.
However, Mir Jafar was in conflict with the East India company over too many demands and tried to tie up with the Dutch East India Company.
The British eventually overran the Dutch forces at Chinsura and played a major role in replacing Mir Jafar with Mir Qasim.
Qasim later falls out with the British and fights them at the Battle of Buxar.
His defeat has been suggested as the last real chance of preventing a gradual British expansion in large parts of northeast India following Britain's victory in the Seven Years War.
