Taylor Michael Guilbeau (born May 12, 1993) is an American former professional baseball relief pitcher.

Guilbeau showed a marked uptick in his fastball velocity in Arizona,[2] hitting 97 miles per hour (156 km/h) at times.

[3] Guilbeau gave up a tenth-inning walkoff home run in the Arizona Fall League title game on November 17, 2018, to Atlanta Braves prospect Braxton Davidson.

[6] On July 31, 2019, the Nationals traded Guilbeau, Aaron Fletcher, and Elvis Alvarado to the Seattle Mariners in exchange for Roenis Elías and Hunter Strickland.

[10] On February 6, 2021, Guilbeau was designated for assignment by Arizona following the signing of Joakim Soria was made official.