She is the first-born daughter of Bebe Buell, a model, singer, and former Playboy Playmate (Miss November 1974), and Steven Tyler, the lead singer of Aerosmith.

She is of Italian, German, Cherokee, and Russian ancestry on her father's side, and her mother is German-American.

Tyler received her first modeling job at age 14 with the assistance of Paulina Porizkova who took photos of her that ended up in Interview magazine. She later starred in television commercials.

She, however, became bored with her modeling career less than a year after it started, and decided to go into acting, although she never took acting lessons.

Tyler first became known to television audiences when she starred alongside Alicia Silverstone in the music video for Aerosmith's 1993 song "Crazy".

Tyler had her breakthrough role in Stealing Beauty (1996), in which she played Lucy Harmon, an innocent, romantic teenager who travels to Italy.

She later appeared in That Thing You Do! (1996), a movie about a fictional one-hit wonder rock band called The Oneders, following their whirlwind rise to the top of the pop charts, and just as quickly, their plunge back to obscurity.

That same year, Tyler was chosen by People magazine as one of the 50 Most Beautiful People.

Tyler next appeared in Armageddon (1998), where she played the daughter of Bruce Willis' character and love interest of Ben Affleck's character.

In 2001, she starred in the feature film The Lord of the Rings: The Fellowship of the Ring, directed by Peter Jackson.

Tyler spent months before filming learning swordfighting, to be used during the concluding battle scenes in The Two Towers, though her scenes from the battle were removed after the script was changed.

Tyler spent months before filming The Lord of the Rings: The Two Towers learning swordfighting, to be used during the concluding battle scenes in The Two Towers, though her scenes from the battle were removed after the script was changed.

She appeared in The Incredible Hulk (2008), in which she played Dr. Betty Ross, the love interest of the title character, played by Edward Norton.

In 1998, Tyler began dating British musician Royston Langdon of the band Spacehog. She and Langdon became engaged in February 2001, and married in Barbados. Soon after, she gave birth to a son, Milo William Langdon. On May 8, 2008, the couple confirmed through representatives that they would be separating but remain friends.

Tyler is an active supporter of the charitable United Nations Children's Fund (UNICEF).

Since 2004, she has donated to the Women's Cancer Research Fund to support innovative research, education, and outreach directed at the development of more effective approaches to the early diagnosis, treatment and prevention of all women's cancers.

Tyler was formerly a vegan, but has since begun to eat meat.

In 2003, she became the spokesperson for Givenchy perfume and cosmetics; in 2005 the brand named a rose after her, which was used in one of its fragrances.

In the video released on February 7, 2012, Liv Tyler covered INXS song "Need You Tonight"