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This page highlights John Hanrahan's extensive experience and notable clients, emphasizing his reputation and the trust placed in him by high-profile individuals.

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At Private Training Lab, we pride ourselves on providing exceptional fitness and wellness services to a diverse and distinguished clientele. Led by the renowned personal trainer John Hanrahan, our facility has become the go-to destination for many high-profile individuals seeking top-tier training and holistic health solutions.

Celebrity Clients

John Hanrahan’s expertise and innovative approach to fitness have attracted a host of notable clients, including:

  • John F. Kennedy Jr.: As a public figure and avid athlete, John F. Kennedy Jr. trusted John Hanrahan to help him maintain peak physical condition and overall wellness in NYC.

  • Julia Roberts: The Academy Award-winning actress has relied on John’s personalized training programs in NYC to stay in shape for her demanding roles and active lifestyle.

  • Howard Stern: The radio and television personality has benefited from John’s expert guidance to achieve his fitness goals and enhance his well-being with John on his trips to Los Angeles.

  • Natasha Richardson: The late actress appreciated John’s comprehensive approach to fitness, which complemented her busy career in the performing arts in NYC.

  • Diane Sawyer: The acclaimed journalist and television anchor turned to John in NYC for his specialized training techniques to keep her in top form.

  • Mercedes Ruehl: The Tony and Academy Award-winning actress has experienced the benefits of John’s customized fitness programs with John in New York City.

  • Betty Buckley: The legendary Broadway star has relied on John’s expertise to maintain her strength and flexibility for her demanding stage performances. Training with John in L.A.

  • Joan Lunden: The former host of “Good Morning America” trusted John with her fitness regimen in NYC to stay energetic and healthy.

  • Patricia Heaton: The Emmy Award-winning actress has worked with John in Los Angeles, to achieve her fitness goals and maintain her vitality as the top paid female sitcom star.

  • David Geffen: The entertainment mogul has appreciated John’s LA based personalized training plans tailored to his specific needs.

  • Tim Burton: The visionary filmmaker has relied on John to keep him in optimal health while managing his busy career in Hollywood.

  • Sandy Gallin: The influential Hollywood talent manager and producer benefited from John’s expert fitness coaching.

  • Tara Reid: The actress worked with John in L.A. to stay in shape for her various movie roles in film and television.

  • Beverly D’Angelo: The versatile actress trusted John as her L.A. Trainer to help her maintain her fitness and overall well-being.

  • Annabella Sciorra: The Hollywood  actress has appreciated John’s comprehensive fitness programs tailored to her lifestyle.

  • Cyndi Lauper: The iconic singer has relied on John’s expertise to stay fit and healthy booking John on her trips to Los Angeles.

  • Donald De Line: The film producer trained with John in L.A., and completed the NYC Marathon together.

  • Amy Pascal: The Sony Pictures film executive trusted John with her health and fitness regimen as her L.A. trainer.

  • Kevin Huvane: The CAA Managing Partner and talent agent worked with John to achieve his fitness goals.

  • Bryan Lourd: The renowned Hollywood agent has appreciated John’s expert guidance in maintaining his physical fitness.

  • Davis Guggenheim: The Academy Award winning filmmaker has relied on John’s specialized training techniques.

  • Graydon Carter: Vanity Fair editor has trusted John to help him stay in top physical condition .

  • Mary McCormack: Star of The West Wing, Murder One, In Plain Sight, engaged rigorously with John’s personalized training.

  • Rick Rubin: The legendary music producer, Def Jam Records co-founder, and 9-time Grammy Award winner chose John to guide him in his Hollywood home fitness program.

John Hanrahan was also honored to be selected as the Strength and Conditioning Coordinator for the 2021 US Olympic Wrestling Team Camp, reflecting his expertise and dedication to elite athletic training.


These esteemed clients chose John Hanrahan not only for his expertise and innovative training methods but also for his personalized approach to each individual’s fitness journey. At Private Training Lab in Alpharetta GA, we are honored to have the opportunity to support individuals in achieving their health and wellness goals.

Contact us to experience the unparalleled benefits of training with John Hanrahan at Private Training Lab. Transform your fitness and well-being with the best in the industry.

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