The Shire of Wellington is a local government area in Victoria, Australia, located in the eastern part of the state. It covers an area of 10,989 square kilometres (4,243 sq mi) and at the 2016 Census had a population of almost 43,000.

It includes the towns of Heyfield, Rosedale, Maffra, Sale, Stratford, Coongulla, Newry, Tinamba and Yarram. It was formed in 1994 from the amalgamation of the Shire of Alberton, Shire of Avon, Shire of Maffra, City of Sale and parts of the Shire of Rosedale.

The Shire is governed and administered by the Wellington Shire Council; its seat of local government and administrative centre is located at the council headquarters in Sale, it also has service centres located in Maffra, Stratford and Rosedale. The Shire is named after a major geographical feature in the region, Lake Wellington, which is located in the south-east of the LGA.