Baron Arthur Grumiaux (French: [gʁymjo]; 21 March 1921 – 16 October 1986) was a Belgian violinist, considered by some to have been "one of the few truly great violin virtuosi of the twentieth century".

[2] English music critic and broadcaster, Edward Greenfield wrote of him that he was "a master virtuoso who consistently refused to make a show of his technical prowess".

[2] Born to a working-class family in the Belgian town of Villers-Perwin, on 21 March 1921,[3] Grumiaux was only three years old when his grandfather urged him to begin music studies.

[6] Due to the German invasion of his homeland, he next played publicly after liberation in 1945 with the Allied military entertainment organisation,[8][9] making his London debut later that year.

[23] The Arthur Grumiaux International Violin Competition is held annually and takes place at the Royal Conservatory of Brussels in Belgium.