John Ross Bowie (born May 30, 1971) is an American actor and comedian best known for playing Barry Kripke on The Big Bang Theory. He appeared in the film What The Bleep Do We Know? opposite Marlee Matlin and guest appearances on shows such as Reno 911, Curb Your Enthusiasm, Glee, and Good Luck Charlie. In March 2011 he began a run in a series of commercials for the Ford Motor Company.

Bowie is a regular sketch comedy performer at the Upright Citizens Brigade Theater (UCBT) in New York and Los Angeles. At UCBT he was a member of the sketch troupe "The Naked Babies" with comedians Rob Corddry, Seth Morris, and Brian Huskey. He has a recurring role in Corddry's Adult Swim series Childrens Hospital. Bowie is a former member of New York pop punk band Egghead.

He has worked with The Big Bang Theory co-star Kevin Sussman to create two TV comedies, The Ever After Part (never aired) and The Second Coming of Rob, 2011 and 2012, respectively.

Bowie is an Episcopalian, of Scottish-Irish descent.