Austin Krajicek (/ˈkraɪtʃɛk/ KRYE-chek; born June 16, 1990)[8] is an American professional tennis player.

A former player for Texas A&M University, Krajicek won the national doubles title at the 2011 NCAA Division I Tennis Championships, the first in the program's history.

Prior to 2018 Krajicek competed mainly on the ITF Futures and ATP Challenger Tour, both in singles and doubles.

He won his second doubles match (the first was in 2013 with Denis Kudla) at the 2017 US Open with partner Jackson Withrow by defeating Philipp Oswald and André Sá in the first round.

Partnering Vasek Pospisil, he reached his tenth final at the 2021 Hall of Fame Open where he lost to fellow Americans Jack Sock and William Blumberg.

At the Olympics, he reached the semifinals partnering again with Tennys Sandgren where they lost to eventual champions Mate Pavic and Nikola Mektic.

Partnering with Steve Johnson, he reached his first Masters 1000 final at the 2021 Western & Southern Open in Cincinnati, defeating Colombian pair Juan Sebastián Cabal and Robert Farah in a tight three-set match.

[12] At the 2022 French Open, he reached the first major final in his career, partnering with Dodig and defeating top seeds Joe Salisbury and Rajeev Ram in the quarterfinals.

At the 2022 Tennis Napoli Cup, he won his second title with Dodig as a team, defeating home favorites Lorenzo Sonego and Andrea Vavassori to reach their fifth final of 2022 and Australian duo Matthew Ebden and John Peers in the final.

[14][15] He reached his third straight and sixth final for the season with Dodig at the ATP 500 2022 Swiss Indoors in Basel, defeating top seeds Arevalo/Rojer and the Kazakhstani duo of Andrey Golubev and Aleksandr Nedovyesov en route.

[23][24][9][25] He won his second grass court title with Dodig at the 2023 Queen's Club Championships and reclaimed the No.

At the 2024 Miami Open he reached the final for a second consecutive year, this time with Dodig, but lost to top seeds Bopanna and Ebden.

[29] Krajicek made his World TeamTennis debut in 2020 with the Orange County Breakers at The Greenbrier.