As of the 2008 season, that is Ferguson Jenkins who struck out 274 batters in 1970.
bob gibson
Matt Kilroy holds the record for most strikeouts by a pitcher in a single season with 513 in 1886. Nolan Ryan holds the modern day record with 383 in 1973.
Sammy Sosa with 174 in 1997.
For the 2007 season, Jake Peavy of the San Diego Padres led all MLB pitchers in strikeouts with 240.
Johan Santana with 265 strikeouts in 2004.
Sandy Koufax with 382 strikeouts in 1965.
As of the 2010 season, the Yankees team record for strikeouts by a pitcher in a season is 248 by Ron Guidry in 1978.
dizzy dean
Matt Kilroy of the Baltimore Orioles had 513 strikeouts in 1886. Nolan Ryan who had 383 strikeouts in 1973 for the California Angels holds the modern day record. The record for most strikeouts in a single game is 20, shared by Kerry Wood and Roger Clemens, who did it twice. -------------------------------------------------------------------------------------------------------------------------- Not really germaine to the question but the record for most strikeouts in a game is 21 held by Tom Cheney of the Washington Senators who did the deed in 1962 against the Baltimore Orioles in a 16 inning game. Wood, Clemens, and Randy Johnson hold the record for strikeouts in a 9 inning game with 20.
Tom Cheney of the Washington Senators holds the MLB record for most strikeouts in a single game when he struckout 21 Baltimore Orioles batters in a 16 inning game in 1962. Kerry Wood, Randy Johnson, and Roger Clemens (twice) hold the MLB record for most strikeouts in a 9 inning game with 20. == ==
Mark Reynolds holds the record for most strikeouts in a single season with 223 strikeouts in 2009.
Adam Dunn