Ryan Jason Karp (born April 5, 1970) is an American former major league pitcher who played for the Philadelphia Phillies in 1995 and 1997.

In 1993, pitching for three different minor league teams (the Greensboro Hornets, the Prince William Cannons, and the Albany-Colonie Yankees), Karp was 16-3 with a 2.11 ERA, and struck out 176 batters in 173 innings.

He was traded February 9, 1994, to the Philadelphia Phillies with Kevin Jordan and Bobby Muñoz for Terry Mulholland and a player to be named later (Jeff Patterson).

He pitched for the Triple-A Durham Bulls in 1998, and split the 1999 season between the independent Bridgeport Bluefish and the Oklahoma RedHawks and Tulsa Drillers of the Texas Rangers organization.

Ryan is the Vice President of Global Tax Technology for State Street Corporation.