Gundagai Shire was a local government area in the Riverina region of New South Wales, Australia.

[2] Gundagai was declared a Municipality in 1889, and Adjungbilly Shire Council created in 1906 to administer the district.

[5] A 2015 review of local government boundaries recommended that Gundagai Shire merge with adjoining councils.

The first proposed a merger between the Gundagai and Cootamundra shires to form a new council with an area of 3,981 square kilometres (1,537 sq mi) and support a population of approximately 11,500.

[10] Gundagai Shire Council was composed of eight councillors elected proportionally from a single ward.