Geddy Lee Weinrib (; born Gary Lee Weinrib, July 29, 1953) is a Canadian musician, best known as the lead vocalist, bassist, and keyboardist for the rock group Rush. Lee joined the band in September 1968 at the request of his childhood friend Alex Lifeson, replacing original bassist and frontman Jeff Jones. Lee's solo effort, My Favourite Headache, was released in 2000.

Lee's style, technique, and skill on the bass have inspired many rock musicians such as Cliff Burton of Metallica, Steve Harris of Iron Maiden, John Myung of Dream Theater, Les Claypool of Primus, Steve Di Giorgio of Sadus, Death and Testament, and Tim Commerford of Rage Against the Machine and Audioslave. Along with his Rush bandmates – guitarist Alex Lifeson and drummer Neil Peart – Lee was made an Officer of the Order of Canada on May 9, 1996. The trio was the first rock band to receive this honor. In 2013, the group was inducted into the Rock and Roll Hall of Fame after 14 years of eligibility. In 2006, Lee was ranked 13th by Hit Parader on their list of the 100 Greatest Heavy Metal Vocalists of All Time.