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

The Shire was divided into four wards, and contained six villages - Conargo, Blighty, Mayrung, Pretty Pine, Wanganella and Booroorban.

Conargo Shire was established in 1907. In 2001 the former Windouran Shire was absorbed into Conargo Shire. This amalgamation resulted in an additional 5,090 square kilometres (1,970 sq mi) and another 387 residents.

Before mergers in recent decades it was a common in New South Wales for rural shires to have their offices in an adjacent rural municipality (rural town). At the time of its abolition, the only surviving case was Conargo Shire Council's offices in Deniliquin.^{[citation needed]}