The five-match T20I series stands 1-1 after two matches.
West Indies won the first match by eight wickets on Saturday, but the visitors came back in grand fashion in the second match, winning it by 16 runs on Sunday.
This series forms part of the West Indies' international home season with a total of 15 T20Is as they continue preparations to defend their title at the ICC T20 World Cup to be played later this year.
Roger Harper, Lead Selector in an official release said: "The Selection Panel is happy to retain the same squad for the third CG Insurance T20I. With this series in the balance, we would like to give this squad another opportunity to display how well they can play together. We are aware that there are still a number of T20Is ahead so there will be opportunities for other players going forward."
West Indies squad:
Kieron Pollard (c), Nicholas Pooran, Fabien Allen, Dwayne Bravo, Fidel Edwards, Andre Fletcher, Chris Gayle, Jason Holder, Evin Lewis, Obed McCoy, Andre Russell, Lendl Simmons, Kevin Sinclair
(ANI inputs)