The Riverina /rɪvəˈriːnə/ is an agricultural region of south-western New South Wales (NSW), Australia. The Riverina is distinguished from other Australian regions by the combination of flat plains, warm to hot climate and an ample supply of water for irrigation. This combination has allowed the Riverina to develop into one of the most productive and agriculturally diverse areas of Australia. Bordered on the south by the state of Victoria and on the east by the Great Dividing Range, the Riverina covers those areas of New South Wales in the Murray and Murrumbidgee drainage zones to their confluence in the west.
Home to Aboriginal groups for over 40,000 years, the Riverina was originally settled by Europeans in the mid-19th century as a pastoral region providing beef and wool to markets in Australia and beyond. In the 20th century, the development of major irrigation areas in the Murray and Murrumbidgee valleys has led to the introduction of crops such as rice and wine grapes. The Riverina has strong cultural ties to Victoria, and the region was the source of much of the impetus behind the federation of Australian colonies.
Major population and service centres in the Riverina include the cities of Wagga Wagga, Albury and Griffith. Albury and Wagga Wagga are home to campuses of Charles Sturt University, the only local provider of higher education for the region. Wagga Wagga is home to two major Australian Defence Force establishments.