Cory Gearrin is a former professional baseball player who played as a relief pitcher in Major League Baseball (MLB). He was born on April 14, 1986, in Chattanooga, Tennessee, and attended Mercer University in Macon, Georgia, where he played college baseball for the Mercer Bears.

Gearrin was drafted by the Atlanta Braves in the fourth round of the 2007 MLB draft and made his professional debut in 2011. He spent the majority of his career with the Braves, pitching for them from 2011 to 2015. During his time with the Braves, Gearrin was primarily used as a relief pitcher and had a career ERA of 3.23 in 131 appearances.

In 2015, Gearrin was traded to the San Francisco Giants, where he continued to pitch as a relief pitcher. He had a successful season with the Giants in 2016, posting a 4-2 record with a 4.28 ERA in 56 appearances. Gearrin also played for the Texas Rangers, Oakland Athletics, Seattle Mariners, and New York Yankees during his career.

Throughout his career, Gearrin was known for his ability to induce ground balls and limit home runs. He had a career ground ball rate of 53.5% and allowed just 0.7 home runs per nine innings pitched.

Gearrin announced his retirement from professional baseball on February 22, 2021, after spending the 2020 season with the Cincinnati Reds. He finished his career with a 4.28 ERA, 13 saves, and 307 strikeouts in 321 innings pitched.

Off the field, Gearrin was known for his charitable work and was a finalist for the 2018 Roberto Clemente Award, which recognizes players who demonstrate a commitment to giving back to their communities. Gearrin and his wife, Maddi, founded the Gearrin Family Foundation, which supports organizations that provide education, healthcare, and basic needs to children and families in need.