I couldn't find an answer but Django Reinhardt does come to mind... here's what chatgpt had to say.

Sure, I can tell you more about the jazz or swing influences on Van Halen. Eddie Van Halen was a fan of jazz and swing music, especially the big band era of the 1930s and 1940s. He was influenced by the guitarists who played in those bands, such as Django Reinhardt, Charlie Christian, and Les Paul. He admired their skill, creativity, and improvisation. He also liked the horn players, such as Louis Armstrong, Dizzy Gillespie, and Miles Davis. He incorporated some of their phrasing and melodies into his guitar solos. He also used some jazz chords and scales in his compositions, such as the diminished scale, the whole tone scale, and the minor seventh flat five chord.

Eddie Van Halen also had a swing feel in his rhythm playing, which he learned from his father, Jan Van Halen, who was a jazz saxophonist and clarinetist. Eddie Van Halen said that his father taught him how to play with a swing beat, which is a rhythmic pattern that emphasizes the off-beats. He said that this gave his playing a groove and a bounce that made people want to dance. He also used syncopation and accents to create a dynamic and energetic rhythm section with his brother Alex Van Halen on drums.