Jayson Richard Gowan Werth (born May 20, 1979), is an American former professional baseball outfielder, who played in Major League Baseball (MLB) for the Toronto Blue Jays, Los Angeles Dodgers, Philadelphia Phillies, and Washington Nationals. During his playing days, Werth stood 6 feet 5 inches (1.96 m) tall, weighing 235 pounds (107 kg); he batted and threw right-handed. While primarily a right fielder throughout his career, Werth also played left field for the Nationals.
Werth was born in Springfield, Illinois, the son of Jeff Gowan, a collegiate baseball and football player who broke all the receiving records and led all Division I wide receivers in receptions while at Illinois State University, and played outfield in the St. Louis Cardinals farm system in 1978 and Kim Schofield, who competed in the U.S. Olympic Trials in the long jump and 100 meters. He is the grandson of Ducky Schofield and nephew of Dick Schofield, both Major League Baseball infielders, and stepson of Dennis Werth, who played in parts of four seasons with the Kansas City Royals and New York Yankees from 1979 through 1982. Werth is married with two children.