Phil Davies' 26-man squad has been fully utilised throughout the tournament in order to give players the maximum amount of exposure to this level of international rugby with Blues and Glamorgan Wanderers full back Dan Fish and Ospreys and Neath wing Kristian Phillips the only players to have started every game.
Behind the scrum, Ben John, Ashley Beck, James Loxton and Matthew Jarvis return to the starting line-up to face the Pacific Islanders, while up front, Rhys Williams, Rhodri Jones, Lloyd Peers and James Thomas all get the nod.
Dan Watchurst retains the captaincy of the side while last year's Wales Under 18 captain, Lloyd Peers, steps up to take the role of vice-captain for this game.
"The players are keen to finish the tournament on a high and that means a win against Fiji tomorrow. Having already played, and beaten Fiji once in the tournament, we know each other's capabilities but we will back ourselves to deliver a performance and a result," said Davies.
James King and Rhys Jenkins are ruled out of the final game through injury.
Wales Under 20 v Fiji (Monday 21 June, Santa Fe): Dan Fish; Kristian Phillips, Ben John, Ashley Beck, James Loxton; Matthew Jarvis, Rhys Downes; Dan Watchurst (capt), Rhys Williams, Rhodri Jones, Lloyd Peers (vice-capt), Joel Galley, Edward Siggery, Josh Navidi, James Thomas.
Replacements: Ieuan Davies, Joe Rees, Will Taylor, Morgan Allen, Gareth Davies, Steven Shingler, Scott Williams