Austin Stone Bergner (born May 1, 1997) is an American professional baseball pitcher in the Detroit Tigers organization.

Bergner initially attended West Orange High School in Winter Garden, Florida, where he started receiving national attention as a sophomore.

[1] He represented the United States U18 team that won a gold medal at the 2014 COPABE Pan American Championships in Mexico.

[2] He subsequently represented Team USA at the 2015 WBSC U-18 Baseball World Cup in Japan, where they also won gold.

In their opening game against the Czech Republic, he struck out nine batters in six innings to lead USA to an 11–1 mercy rule win.