Ryan Keith Perry (born February 13, 1987) is a former American professional baseball pitcher. At the end of 2008 Baseball America named him the Detroit Tigers second best prospect, behind Rick Porcello.
Perry was born in Pomona, California and played collegiate baseball at the University of Arizona. While at Arizona, he pitched alongside Tigers teammate Daniel Schlereth. Ryan Perry was drafted by the Detroit Tigers with the 21st overall selection in the 2008 Major League Baseball Draft.
On April 1, 2009 it was announced that Perry would make the opening day roster for the Tigers for the 2009 season.
On April 8, Perry made his major league debut against the Toronto Blue Jays. He threw a scoreless eighth inning in the Tigers' 5–1 victory.
On June 8, Perry was sent to the Toledo Mud Hens when Jeremy Bonderman came off the disabled list.
He began the 2010 season as a middle relief pitcher for Detroit. He recorded his first career win May 1 against the Los Angeles Angels by pitching two-thirds of an inning.
On June 10, Perry was placed on the 15-day disabled list with right biceps tendinitis. After rehab in Toledo, he was called back up on July 3.
Perry posted a 3.79 ERA over 61 2⁄3 innings in Detroit as a rookie, walking 38 and striking out 60. He recorded two saves the following season, allowing 55 hits over 62 2⁄3 innings, but his strikeout rate fell precipitously, a trend that continued in 2011 and beyond.
After starting the season with a 12.19 ERA through 13 appearances, Perry was optioned to Toledo on May 28, 2011 to make room for spot starter Andrew Oliver.
Perry was traded by the Tigers to the Washington Nationals for Collin Balester on December 9, 2011.
On February 27, 2015, the Tigers signed Perry to a minor league contract. He was released by the Toledo Mud Hens on June 9.