Western Plains may refer to:

• Far West (New South Wales)
• Taronga Western Plains Zoo, formerly just Western Plains Zoo, near Dubbo, New South Wales
• Western Plains (New South Wales), an area west of the Great Dividing Range in New South Wales, Australia, centred on Dubbo
• Western Plains Regional Council, former name for Dubbo Regional Council
• Western Plains wine zone, Geographical Indication which extends from vineyards near Dubbo across to the South Australia and Queensland borders

• Great Plains, also known as Western Plains, a broad expanse of flatland west of the Mississippi River and east of the Rocky Mountains in the United States and Canada
• Western Plains District of the boy scouts in Oklahoma, United States
• Western Plains District (Church of the Brethren), a district of the Church of the Brethren in the United States
• Western Plains USD 106, a public unified school district in Ransom, Kansas, United States