Walter Wanderley (1924–1986) was a Brazilian organist and pianist best known for his smooth, rhythmically vibrant approach to bossa nova and samba-jazz. Rising to international fame in the 1960s after collaborating with Astrud Gilberto, Wanderley became a pioneer of the Hammond organ in Brazilian music. His signature light touch, infectious swing, and playful melodic sensibility brought Brazilian rhythms to global audiences, making albums like *Rain Forest* and the hit “Summer Samba (So Nice)” enduring classics of the genre.