Tathra (/ˈtɑˑθrə/) is a seaside town on the Sapphire Coast found on the South Coast, New South Wales, Australia in Bega Valley Shire. It has a population of 1,622.
Nearby points of interest are the Old Tathra Wharf, Mimosa Rocks National Park and Bournda National Park. Mimosa Rocks National Park starts at the northern end of Tathra Beach and runs north for about 16 km. It has five access roads from the Tathra-Bermagui main road. Bournda National Park starts at Kianinny Bay, at the southern end of Tathra, and runs south for about 13 km. There is a walking track near the coast, along most of its length.
The Bega River flows into the sea at the northern end of Tathra Beach, which is about 3 km long.
Tathra is said to mean "beautiful country" or "place of wild cats" in a local Aboriginal dialect.