William John Evans (August 16, 1929 – September 15, 1980) was an American jazz pianist and composer who worked primarily as the leader of his trio. His extensive use of impressionist harmony, block chords, innovative chord voicings, and trademark rhythmically independent "singing" melodic lines continue to influence jazz pianists today.
Born in Plainfield, New Jersey, Evans studied classical music at Southeastern Louisiana College and the Mannes School of Music, in New York City, where he majored in composition and received an artist diploma.
