Henri Marteau (31 March 1874 – 3 October 1934) was a French violinist and composer, who obtained Swedish citizenship in 1915.Marteau was born in Reims. He was of German and French ancestry. His father, a Frenchman, was a well known amateur violinist in Reims, and took a great interest in musical affairs. His mother, a Berliner, was an excellent pianist, who had studied under Clara Schumann. Through the influence of Camillo Sivori, Marteau's parents were easily persuaded to allow their son to adopt a musical career, and he showed remarkable aptitude in his studies, first under Bunzl, later under Hubert Léonard and from 1891 entered Jules Garcin's class at the Conservatoire de Paris.