Kutcher, who is best known for his work on the TV sit-com "That 70s Show," was most recently seen on the big screen in "What Happens in Vegas." He is married to actress Demi Moore and is step-father to her three daughters by her ex-husband Bruce Willis.
"I asked him why he wanted to coach. He said he's a dad, he has three daughters, and none of them are into sports. He loves football, and he said he'd always wanted to coach," Head of Athletics Audrius Bardzukas told People magazine.
Barzdukas said the 30-year-old actor, who played high school football more than a decade ago, is to attend practice five days a week for his new job.
"He's put in the time to learn our schemes and systems, and so far he's been a pleasant surprise as a coach," Barzdukas told People. "He's a great communicator."
Asked if Kutcher's job is a paid position, Barzdukas replied, "We don't have volunteer coaches, but I can tell you he's not in it for the money."