Kevin Millar (born September 24, 1971 in Los Angeles, California) is a Major League Baseball outfielder/first baseman who plays for the Baltimore Orioles. He bats and throws right-handed. Millar played college baseball at Lamar University in Beaumont, Texas
In 1993, Millar began his professional career with the independent St. Paul Saints. His contract was purchased by the Florida Marlins at the end of the season. He made his major league debut for Florida in 1998.
In his seven-year career, Millar has batted .292 with 102 home runs and 421 RBI in 798 games.
Millar played for the Florida Marlins between 1998 and 2002, and was later sold to the Japanese Central League Chunichi Dragons. In order for the transaction to be completed, he first had to clear the waivers requested by the Marlins, but the Red Sox broke an unwritten rule and blocked the deal with a waiver claim. In an unprecedented deal brokered by MLB, the Marlins later repaid the money that the Dragons had paid for Millar, and the Sox also paid a similar sum to the Marlins in return for Millar. He became a clubhouse favorite and a sort of cult hero for the Red Sox fans after his "Cowboy Up" rally cry.
A long fly-ball hitter, Millar's left field power played well in Fenway Park, even though the Green Monster turned a few potential home runs into doubles. Reasonably patient, he makes good contact for a power hitter against right-handers just as well as southpaws, and seems to respond to urgent situations. He doesn't run nearly well enough to be a dangerous factor on the bases. As a fielder, he has a reputation for having good hands, but many people believe that he lacks mobility and that his arm is weak.
Millar signed with Baltimore on January 12, 2006 as a free agent.
Millar was a replacement player during the 1994 baseball strike, when he played with the replacements in early 1995 (see List of famous strike-breakers).