Viewers can follow all the action live from July 4 to July 24.
The Irish language channel will offer an average of three hours of live coverage each day as well as a 30-minute highlight slots every night, including previews, cyclist profiles, results and reports.
TG4 sports editor RC3nC!n C Coisdealbha said: "This is the third major sports rights deal we have announced in the past two months and will ensure that Irish viewers have free to air access to the world's most famous cycle race."
