Illabo is a locality in the South West Slopes part of the Riverina in New South Wales, Australia. It is situated about 13 kilometres (8 mi) southwest of Bethungra and 16 kilometres (10 mi) northeast of Junee. At the 2016 census, Illabo had a population of 144.

The Main Southern Railway is a major railway in New South Wales, Australia. It runs from Sydney to Albury, near the Victorian border. The line passes through the Southern Highlands, Southern Tablelands, South West Slopes and Riverina regions.