Scott Ryan Williamson (born February 17, 1976) is a former right-handed relief pitcher.
He played for the Cincinnati Reds (1999–2003), Boston Red Sox (2003-2004), Chicago Cubs (2005–2006), San Diego Padres (2006), and the Baltimore Orioles (2007).
After a lightning-fast start: going from college to the major leagues in two years, with just five appearances at the Triple-A level and winning National League Rookie of the Year honors, Williamson's career tailed off in the mid-2000s as he suffered repeated injuries and spent long stretches on the disabled list.