Tyesha Mattis (born 17 April 1999 in Hackney, London) is a British artistic gymnast currently representing Jamaica in international competition.

[2] Mattis competed for Great Britain at the Australian Youth Olympic Festival in Sydney earlier in January.

[4] At the 2015 British Championships, Mattis won the event titles for both bars and beam (again only competing these two apparatuses) with identical scores of 14.400.

[5] On 23 April, it was announced by the British Olympic Association that Mattis was to represent Great Britain at the first ever European Games alongside 2012 Olympian Rebecca Tunney and 2014 Commonwealth champion Kelly Simm,[6] although due to a recent operation with Mattis and perpetual injuries with Tunney they were both withdrawn from the competition and replaced by double 2014 Commonwealth bronze medalist Georgina Hockenhull and 2014 World Championships reserve athlete Charlie Fellows (gymnast).

[7] In June 2022 it was announced that Mattis and her younger sister, China, intend to return to international competition representing Jamaica.