Thomas John Guiry is an American actor.
Guiry was born in Trenton, New Jersey and attended St. Gregory the Great school in Hamilton Township, Mercer County, New Jersey from kindergarten through eighth grade, and then high school at Notre Dame High School in Lawrenceville, New Jersey. In 1989, he briefly starred in a small role as a basketball team captain in the episode titled "Loosiers" from the second season of The Wonder Years. His most notable appearances were in The Sandlot, U-571, The Mudge Boy, and The Four Diamonds. Guiry played Jimmy Donnelly on the NBC drama The Black Donnellys.
In August 2013, Tom Guiry was arrested at George Bush Intercontinental Airport in Houston, Texas for allegedly head-butting a police officer after he was told he was too drunk to board a flight. This came just one month after a "Sandlot" reunion for the movie's 20th anniversary in Utah, where it was originally filmed though Guiry was unable to attend the reunion.