Jamie Walker is a former Major League Baseball pitcher who played for several teams during his career. He was born on July 1, 1971, in McMinnville, Tennessee, and attended the University of Alabama.

Walker was drafted by the Houston Astros in the 10th round of the 1992 MLB draft. He made his MLB debut with the Detroit Tigers in 1997 and played for them until 2002. During his time with the Tigers, he was primarily used as a relief pitcher and had a career-high 11 saves in 2002.

In 2003, Walker signed with the Kansas City Royals and played for them for one season before being traded to the Oakland Athletics. He played for the Athletics for one season before being traded again, this time to the Baltimore Orioles.

Walker spent the majority of his career with the Orioles, playing for them from 2004 to 2008. During his time with the Orioles, he was a reliable left-handed relief pitcher and had a career-best 2.81 ERA in 2006.

In 2009, Walker signed with the Philadelphia Phillies but struggled with injuries and was released in August of that year. He retired from baseball shortly after.

Overall, Walker had a solid career as a left-handed relief pitcher, appearing in 644 games and posting a 4.23 ERA. He was known for his ability to get left-handed batters out and was often used in situational matchups.

After retiring from baseball, Walker returned to his hometown of McMinnville, Tennessee, where he became a high school baseball coach. He also worked as a color commentator for the Tennessee Smokies, a minor league baseball team.