Abigail Anne Tucker (born 22 January 1973) is an Australian singer-songwriter and actress, best known for acting roles in shows such as Heartbreak High and The Secret Life of Us. She came to public attention as a contestant in the Australian version of New Faces in the early 1990s and soon after landed a role in the spin-off from Australian film The Heartbreak Kid - Heartbreak High. A role in The Secret Life of Us gave Tucker exposure as a singer with slots not only on the show plus tracks on spin-off CDs.

It was not until 2003 that her debut album Dreamworld was released. Not a musician afraid to experiment with her sound, she tried out a heavier rock style, forming short-lived band Bully during the late 1990s whilst living in the UK. Tucker is well known as a live music performer in Sydney whilst her songs have also appeared on The Secret Life of Us album (featuring her best-known single, "Everybody (Idiot Free)") as well on the soundtrack to the movie Angst (in which she plays the part of May). She also contributed backing vocals to some songs on David McCormack's debut solo album, Candy in 2002.

Tucker appeared in the play Breakfast with Jonny Wilkinson at the 2006 Edinburgh Fringe Festival.

In 2007, Tucker joined the cast of the rural TV drama series McLeod's Daughters, as the stubborn McLeod daughter, yet passionate Grace Kingston. Tucker is one of the lead cast members of the show.