Leon "Ndugu" Chancler (born July 1, 1952) is a pop and funk drummer.
Chancler was born in Shreveport, Louisiana and began playing drums when he was thirteen years old. While in high school, he played with Willie Bobo and the Harold Johnson Sextet. He graduated from California State University, Dominguez Hills with a degree in music education. By then he had already performed with the Gerald Wilson Big Band, Herbie Hancock, and recorded with Miles Davis, Freddie Hubbard, and Bobby Hutcherson.
He has recorded as a sideman in jazz, blues, and pop music, including on "Billie Jean" by Michael Jackson. He has worked with George Benson, Stanley Clarke, The Crusaders, George Duke, Herbie Hancock, John Lee Hooker, Hubert Laws, Thelonious Monk, Jean-Luc Ponty, Lionel Richie, Kenny Rogers, Patrice Rushen, Carlos Santana, Frank Sinatra, Donna Summer, The Temptations, Tina Turner, and Weather Report.
In 2006 he became an Adjunct Assistant Professor of Jazz Studies at the University of Southern California and teaches at the Stanford Jazz Workshop in California for three weeks every summer] He is a member of the Percussive Arts Society.