Aaron Shawn Estes (born February 18, 1973 in San Bernardino, California) is a Major League Baseball pitcher for the Los Angeles Dodgers organization. After he attended Douglas High School in Minden, Nevada, he was offered a scholarship by Stanford University. He turned it down, however, in favor of signing with the Seattle Mariners after he was selected by the Mariners in the 1st round of the 1991 MLB Draft out of Douglas High School.
He began his career with the Bellingham Mariners in "A" ball in 1991. He then played with the Appleton Foxes, Arizona League Mariners and Wisconsin Timber Rattlers from 1992-1995. The Mariners traded Estes to the San Francisco Giants on May 21, 1995 for Salomon Torres.
The Giants moved him through their farm system rapidly during the 1995 season, sending him to the Burlington Bees, San Jose Giants and Shreveport Captains.