Austin Mitchell Bibens-Dirkx (born April 29, 1985) is an American former professional baseball pitcher and current coach.

Bibens-Dirkx attended McNary High School in Keizer, Oregon,[1] Chemeketa Community College, and later the University of Portland.

Bibens-Dirkx began his professional career in 2006, splitting time between the short season Everett AquaSox, the Class-A Wisconsin Timber Rattlers and the Triple-A Tacoma Rainiers.

He remained with the Cubs organization for the next two seasons while also pitching in the offseasons in the Venezuelan winter league with Águilas del Zulia.

In January 2012, Bibens-Dirkx signed a minor league deal with the Washington Nationals that included an invitation to spring training.

He was signed to a minor league contract by the Blue Jays in November 2014 and spent the 2015 season with Buffalo and New Hampshire.

In 17 games (13 starts) for the Triple–A Round Rock Express, he compiled a 3–2 record and 4.34 ERA with 62 strikeouts across 85 innings pitched.

Bibens-Dirkx made 17 appearances (15 starts) for Round Rock, compiling a 3–6 record and 5.68 ERA with 79 strikeouts across 82+1⁄3 innings pitched.

[15] On January 12, 2019, Bibens-Dirkx signed with the Uni-President Lions of the Chinese Professional Baseball League (CPBL).

[23] On January 17, 2023, Bibens-Dirkx announced that he had retired from playing and had joined the Toronto Blue Jays organization as a minor league pitching coach.

[24] On February 15, 2024, Bibens-Dirkx was named as the pitching coach of the Vancouver Canadians the High-A affiliate of the Toronto Blue Jays for the 2024 season.