Through the 2008 season, that is Manny Ramirez with 165 RBIs in the 1999 season. Manny was playing with the Cleveland Indians that season.
That is Lou Gehrig of the New York Yankees who had 184 RBIs in the 1931 season.
Ted Williams, with 145 RBIs in his rookie year, holds the record.
Johnny Bench, 1013
Through the 2008 season, that is Cecil Cooper with 126 RBIs in the 1983 season.
Hank Wilson holds the record for most RBIs in a single season with 191, set in 1930.
Hack Wilson holds the MLB single season RBI record with 191 in 1930 when he played with the Chiacgo Cubs.
Don Drysdale, 19 RBIs, 1965
Sandy Alomar holds the record for most postseason RBIs in a single season with 19, set in 1997.
Los angeles Dodgers
Through the 2009 season, that is Ken Griffey Jr. with 1829 career RBIs. Manny Ramirez is second with 1788 and Alex Rodriguez is third with 1706.