Travis Blackley is a former Australian professional baseball player who played as a pitcher in Major League Baseball (MLB) for several teams. He began his career in the minor leagues in 2000, playing for the Seattle Mariners organization. He made his MLB debut in 2004 with the Mariners, but struggled in his first few seasons, bouncing between the majors and minors.

In 2007, Blackley was traded to the San Francisco Giants, where he spent the next few seasons primarily in the minors. He was briefly called up to the majors in 2012, but was designated for assignment and eventually traded to the Oakland Athletics.

It was with the Athletics that Blackley had his most successful season in the majors. In 2012, he posted a 6-4 record with a 3.86 ERA in 24 games (15 starts). He also helped the Athletics win the American League West division title that year.

After his stint with the Athletics, Blackley played for several other teams, including the Houston Astros, Texas Rangers, and Los Angeles Angels. He also played in various international leagues, including in Japan and Korea.

Throughout his career, Blackley was known for his versatility as a pitcher, able to pitch both as a starter and a reliever. He also had a reputation for being a hard worker and a positive influence in the clubhouse.

Blackley retired from professional baseball in 2019, at the age of 36. He currently resides in Australia and works as a pitching coach for the Adelaide Giants, a team in the Australian Baseball League.