Timothy Donald Locastro (born July 14, 1992) is an American professional baseball outfielder for the New York Yankees of Major League Baseball (MLB).
He has also played in MLB for the Los Angeles Dodgers and Arizona Diamondbacks. He holds the MLB record for most successful stolen bases to start a career, with 29.
Locastro played for the Bluefield Blue Jays of the Appalachian League in 2013, hitting .283 in 43 games. The following season, he was selected to play in the Northwest League midseason all-star game, and he hit .313 in 67 games for the Vancouver Canadians and also stole 32 bases while being caught only four times. He began the 2015 season with the Lansing Lugnuts of the Midwest League, where he hit .310 with 30 steals in 70 games.
On July 1, 2021, the Diamondbacks traded Locastro to the New York Yankees in exchange for Keegan Curtis. On July 11, Locastro hit his first Yankees home run against Framber Valdez of the Houston Astros.
Locastro played in nine games (batting 4-for-21) for the Yankees before suffering a torn anterior cruciate ligament while catching a fly ball off the bat of Boston Red Sox outfielder Alex Verdugo on July 17, ending his 2021 season.
On November 5, 2021, Locastro was claimed off waivers by the Boston Red Sox. However, he was non-tendered on November 30, making him a free agent.
On March 13, 2022, Locastro was signed by the Yankees to a one-year major league deal. He began the 2022 season with the Scranton/Wilkes-Barre RailRiders and was promoted to the major leagues on April 17.