The slender kid with the whirling windup joined Mike McCormick (1967) as the only San Francisco Giants pitchers to win a Cy Young.
Lincecum received 23 of 32 first-place votes and 137 points in balloting by the Baseball Writers' Association of America. Brandon Webb of the Arizona Diamondbacks got four first-place votes and finished second with 73 points.
Listed at 5-foot-11 and 160 pounds, tiny by today's standards for a big league pitcher, Lincecum defied detractors -- and the laws of physics -- by firing 97 mph fastballs past one hulking slugger after another.
The 24-year-old right-hander was 18-5 with a 2.62 ERA and a major league-best 265 strikeouts, remarkable numbers for a fourth-place team that finished 72-90.
Lincecum led the NL in winning percentage (.783), ranked second in ERA and was third with 227 innings. He made his first All-Star squad, but an illness prevented him from appearing in the July 15 game at Yankee Stadium.
New York Mets ace Johan Santana, who led the league in ERA (2.53) and innings (234 1-3) also garnered four first-place votes and came in third.
The other first-place vote went to Milwaukee lefty CC Sabathia, traded by Cleveland into the National League on July 7. He was 11-2 with a 1.65 ERA and seven complete games in 17 starts for the Brewers, pitching them to their first playoff berth since 1982.
Sabathia came in fifth. Brad Lidge, the star closer who had a perfect season for the World Series champion Philadelphia Phillies, was fourth.