is an American film director, film producer, actor, and screenwriter.

McNamara was born in Burbank, California. He is best known for his feature films Soul Surfer and The Miracle Season. In the pre-teen film market he worked with Jessica Alba, Hilary Duff, Shia LaBeouf, Christy Carlson Romano and Raven-Symoné. McNamara and David Brookwell are the founders of the Brookwell McNamara Entertainment production company. McNamara has continued to produce and create shows for MTV, The N, Nickelodeon, Disney Channel, and Cartoon Network. He collaborated with Shin Sang-ok to make Galgameth and 3 Ninjas: High Noon at Mega Mountain, starring Hulk Hogan.

McNamara briefly appeared as the singing cowboy in the Even Stevens musical episode "Influenza: The Musical", and as an alleged alien abductee in the episode "Close Encounters of the Beans Kind". McNamara also had a cameo appearance on That's So Raven, appearing as a plumber in the episode "Out of Control".

In 2016, McNamara was hired to direct the upcoming biopic of President Ronald Reagan titled Reagan.