“Welford Road is one of the best club rugby venues in the world, with such great history and I want to continue to try and do that whenever I get the chance."
The back-rower, from Pencoed in Wales, has made seven senior appearances for Tigers after making his senior debut in an Anglo-Welsh Cup defeat at Bath in November 2017 – with all other matches coming under the reign of Murphy.
Reffell has been appointed captain of Wales U20s for the past two seasons and led the team during the 2018 Junior World Championship.
Speaking about Reffell's commitment to the club, Murphy said: “Tommy is a great lad with a great work ethic and has progressed extremely well in his time with Tigers.”
“He’s performed well in his opportunities in the senior side this season and to have him recommit to Leicester Tigers is fantastic for the club.
“Not only is Tommy an asset on the pitch, he’s a leader off it and helps drives the standards we expect of players at the club.”
Reffell, 19, said: “Since moving here, representing this club at the highest level has always been the goal for me.”
“Tigers took me in at an early age as one of their own and made me into the person I am now.
“Welford Road is one of the best club rugby venues in the world, with such great history and I want to continue to try and do that whenever I get the chance.
“This squad is behind Geordan [Murphy] and we need to make sure that we are all doing what we can to make sure the club is successful.
“There is a good mix of players here at Tigers, with a lot of world class players to model yourself on and a good group of young players getting their chances, which I want to continue to be a part of that.”