Ralph S. DiLullo (March 31, 1911 – August 9, 1999) was a professional baseball player, manager and scout whose career in the sport spanned 60 years. DiLullo was a catcher in the minor leagues and later managed at that level in the Pittsburgh Pirates and Detroit Tigers organizations for five seasons. He then worked for the Chicago Cubs as a scout and was responsible for the signing of pitchers Joe Niekro and Bruce Sutter. He joined the Major League Baseball Scouting Bureau in 1975 and worked there until his 1993 retirement. He briefly re-joined the Cubs system in 1994, but soon retired once again.