Sir George Alan Thomas, 7th Baronet (14 June 1881 – 23 July 1972) was a British badminton, tennis and chess player.

He was part of the English team that toured Canada in 1925 to promote the sport on behalf of the Canadian Badminton Association which had recently been formed in 1921.

[7] The first tournament was originally planned for 1941–42, but due to World War II was not realized until 1948–49, when ten national teams participated in the first Thomas Cup competition.

He shared first prize at the 1934/5 Hastings International Chess Congress with the next world chess champion Max Euwe and leading Czechoslovak player Salo Flohr, ahead of past and future world champions José Raúl Capablanca and Mikhail Botvinnik, whom he defeated in their individual games.

Also in Hastings, eleven years later, Euwe would become the third world chess champion to be defeated by Thomas in a game.

[8] His 'lifetime' scores against the world's elite were however less flattering: he had minuses against Emanuel Lasker (−1, not counting a win in a Lasker simultaneous exhibition in 1896), José Raúl Capablanca (+1−5=3), Alexander Alekhine (−7=6), Efim Bogoljubov (−5=3), Euwe (+1−9=2), Flohr (+2−9=4) and Savielly Tartakower (+3−9=10).