Bigga is a village in the Southern Tablelands of New South Wales, Australia, in Upper Lachlan Shire.

The name Bigga is thought to originate as a shortened version of the Biggs Grant.

Nearby towns are: Abercrombie River, Binda, Greenmantle, Grabine, Reids Flat, and Tuena.

The earliest explorer into the Bigga area was James Meehan who passed through in April 1820, travelling from Mount McDonald to Bathurst, via what was then called the Fish River, but today is known as the Lachlan River.

The first official land sale in the region was of 1,000 acres (400 ha) at Sandy Creek to Samuel A. Blackman in 1835.