Johnny Klausmeier

John Henry Klausmeier (born February 1, 1981) is an American NASCAR crew chief who works for Richard Childress Racing as their technical director. He previously was employed at Stewart–Haas Racing, serving as an engineer, crew chief and Technical Director. Klausmeier became Busch's interim crew chief in 2016 following the suspension of his original crew chief, Tony Gibson. Klausmeier also worked as a race engineer for the team.

On December 16, 2020, it was revealed that Klausmeier would the crew chief for Chase Briscoe for the latter's rookie year in the Cup Series in 2021 and beyond.

On May 31, 2023, following the 2023 Coca-Cola 600, NASCAR issued an L3 penalty on the No. 14 after a post-race inspection revealed a counterfeit engine panel NACA duct; as a result, the team was docked 125 owner and driver points and 25 playoff points, and Klausmeier was suspended for six races and fined 250,000.

On June 20, 2023, it was announced that Richard Boswell would be taking over for Chase Briscoe for the rest of the reason, while Klausmeier would be moved over to the part of the company's vehicle performance group after his suspension was over.

In his three year tenure as Briscoe's crew chief, Klausmeier led him to one win, nine top -fives, and 17 top-tens, including a 2022 playoff berth where they made it all the way to the Round of 8.

When SHR closed down after the 2024 season, Klausmeier was hired by Richard Childress Racing to serve in the same role of Technical Director with their team. Boswell would also follow Klausmeier to RCR and serve as the new crew chief for Austin Dillon's No. 3 car.

In 2026, Klausmeier returned to crew chiefing in the Cup Series race at Pocono, filling in for Andy Street as the interim crew chief of RCR's No. 33 car driven by Austin Hill. This was his first time crew chiefing for RCR since he joined the team.