The ceremony honoring this past season's best in television is to air Sept. 18, live on FOX Television.
"We're delighted to have Jane Lynch host the Primetime Emmys this year," John Shaffner, chairman and chief executive officer of the Academy of Television Arts & Sciences, said in a statement. "When our host has comedic, dramatic and musical talents -- as Jane proved in last year's opening number -- we know it's going to be fun for us and for the audience at home!"
"Jane was my first -- and only -- choice as the host for this year's Primetime Emmys, and I am glad she said 'yes,'" added executive producer Mark Burnett.
"I am tickled pink to be hosting the Primetime Emmys on Fox," said Lynch. "I'm looking forward to singing, dancing and sporting my finest tracksuit."
Emmy nominations are to be announced July 14.
Lynch won an Emmy last year for her work on "Glee."
Her film credits include "Julie & Julia," "Shrek Forever After," "Role Models," "Alvin and the Chipmunks," "Walk Hard: The Dewey Cox Story," "Talladega Nights: The Ballad of Ricky Bobby," "The 40 Year Old Virgin," "Sleepover" and "Surviving Eden."
She also appeared in Christopher Guest's movies "For Your Consideration," "A Mighty Wind" and "Best in Show."