All will play both the Adelaide Fringe, which runs from March 8 to 31, and the Melbourne International Comedy Festival, from April 4 to 29.
Stephen K Amos will headline a 'best of the Edinburgh fest' showcase alongside Ireland's Maeve Higgins and Melbourne's Asher Treleaven - as well as hosting a weekly chat show.
Another Best Of The Fest showcase features Newcastle's Dave Johns, New York's Eddie Ifft and Andrew Stanley from Ireland. And UK circuit regulars Dan Willis and Micky D will also be performing their own shows.
At the Melbourne festival, which has not yet revealed its full programme, Ed Byrne and Rhod Gilbert will be joining the international line-up, while Adam Hills will unveil his new stand-up show, Joymonger.