Harold Everett Greer (June 26, 1936 – April 14, 2018) was an American professional basketball player. He played for the Syracuse Nationals / Philadelphia 76ers of the National Basketball Association (NBA) from 1958 through 1973. A guard, Greer was a 10-time NBA All-Star and was named to the All-NBA Second Team seven times. He was named to the NBA's 50th Anniversary All-Time Team and he had his uniform number retired by the 76ers.
He is also known as Harold Everett Greer.