Geoff Nicholls (28 February 1948, Birmingham, England) is a musician and keyboardist, who is best known as the longtime sideman for the heavy metal band Black Sabbath. Nicholls also played in the NWOBHM band Quartz before joining Black Sabbath. In the late 1960s / early 1970s, Geoff played lead guitar for the Birmingham band Johnny Neal and the Starliners.