Muswellbrook Shire is a local government area in the Upper Hunter region of New South Wales, Australia.

The Shire includes Muswellbrook, Denman, Baerami, McCullys Gap, Martindale, Muscle Creek, Sandy Hollow, Widden and Wybong.

[21][22] The median weekly income for residents within the Muswellbrook Shire was marginally higher than the national average.

In excess of 68% of all residents in the Muswellbrook Shire nominated a religious affiliation with Christianity at the 2011 census, which was considerably higher than the national average of 50.2 per cent.

[3] Muswellbrook Shire Council is composed of twelve councillors elected proportionally as a single ward.