Jason Christopher Dellaero (born December 17, 1976 in Mount Kisco, NY) is a former shortstop in Major League Baseball. He played for the Chicago White Sox in 1999. Jason was drafted by the New York Yankees in the 17th round of the 1994 Major League Baseball draft out of Brewster High School in Brewster, New York but did not sign because the Yankees wanted him to pitch. He instead played college baseball at St. John's where he hit .323 as a freshman before transferring to South Florida where he played two years. In 1997, he hit .324 with 20 home runs at South Florida..

The White Sox selected him 15th overall in the 1997 Major League Baseball draft, and Jason made his major league debut on September 7, 1999 against the Anaheim Angels. In eleven games that season, he managed only three hits in 35 plate appearances. Jason was legendary for his defensive prowess as a shortstop. If he could have hit better, he might have won the shortstop job with the 1999 White Sox. Instead, the White Sox went with Mike Caruso, who was the same age as Jason and who hit .250 that season.

Jason played in the minors or independent ball from 1997 to 2005, mostly as a shortstop. He showed moderate power, hitting at least 10 home runs three separate seasons in the minors. However, he struggled in subsequent seasons in the minors despite several adjustments including batting exclusively from the right side of the plate and visiting a sports psychologist. In 2002, the White Sox tried using Dellaero as a pitcher; he put up an earned run average of 8.47 in 17 minor league innings.

His last season of affiliated baseball came in 2003 and was followed by parts of three seasons in the independent Atlantic League and Golden Baseball League.

(excerpted from Baseball Almanac, BR Bullpen & Wikipedia)