Liverpool Plains and Gwydir was an electoral district of the Legislative Assembly in the Australian state of New South Wales, created in 1856 and covering what is now known as the North West Slopes region, including the Liverpool Plains (which includes Quirindi and Gunnedah) and the extensive pastoral district around the Gwydir River in the northwest of the state. It elected two members simultaneously.
In 1859, Liverpool Plains and Gwydir was divided into Liverpool Plains and Gwydir.[1]