Jonathan William Lipnicki (born October 22, 1990) is an American actor and producer. He is known for his roles as a child actor in the films Jerry Maguire (1996), Stuart Little (1999) and its sequel of 2002, Stuart Little 2, The Little Vampire (2000), and Like Mike (2002).

Jonathan William Lipnicki was born on October 22, 1990, in Westlake Village, California,^[1] to Joseph Lipnicki and Rhonda Rosen. He has an older sister, Alexis.^[2] His family is Jewish.^[3]

He was educated at Agoura High School, a public secondary school in the city of Agoura Hills in Los Angeles County, California.^[4]

Lipnicki made his film debut in Jerry Maguire as the son of Renée Zellweger's character. He subsequently appeared on The Single Guy, The Jeff Foxworthy Show as well as episodes of Dawson's Creek and the sitcom of 1997, Meego. In 1999, he starred in the film Stuart Little, playing a boy whose family adopts a talking mouse, a role he reprised in the film's sequel of 2002.

He also played the lead, Tony Thompson, in the film of 2000, The Little Vampire and starred opposite Bow Wow in the film of 2002, Like Mike, which was released two weeks before Stuart Little 2. The latter films did relatively well in theatres, and Lipnicki has become known among pre teen audiences, although he has not appeared in a widely released film since, focusing mostly on independent films.

Lipnicki has also appeared in the season preview of Jamie Kennedy's Blowin' Up and When Zachary Beaver Came to Town.

He appeared on the comedy Motherlover on the YOMYOMF Network. Lipnicki currently trains in Mixed martial arts styles, but when asked whether he planned to ever fight professionally, he replied, "I've been pretty busy filming and I would need to put off a certain amount of time to really train for a fight and be in amazing cardio shape and really work on my striking more. I'm not saying no and I'm not saying yes."^[5]

Lipnicki has been a speaker for the Breast Cancer Research Foundation and is actively involved with the Juvenile Diabetes Research Foundation, the Starlight Children Foundation and the NBA's Read to Achieve program.^[6][7][8] In 2001, the Juvenile Diabetes Research Foundation named Lipnicki one of its "Heroes of 2001" at the age of ten, for his work with the organization.^[6][8]

Additionally, Lipnicki has been an international spokesperson for Pediatric Chiropractic and Kids Day America/International, and works with animal rights groups such as Pets and their Stars and the Nutz for Mutts group.^[6][7][8]