Talgai is a locality in the Southern Downs Region, Queensland, Australia.
The locality of Ellinthorp is entirely contained within the boundaries of Talgai. This is quite unusual in Queensand which does not normally permit such a containment, requiring all localities to have at least two neighbours.
The locality name derives from the papastoral run name established by G Gammie who arrived on the Condamine River with stock on 9 March 1841.