The Hunger Games by Suzanne Collins

A riveting adventure featuring a fierce heroine fighting for her life.

Beka Cooper: Terrier by Tamora Pierce

Very possibly Pierce's best novel: funny, gripping, absolutely un-put-down-able fantasy starring an unforgettable heroine.

Graceling by Kristin Cashore

Girls don't come much braver than Katsa.

Piratica by Tanith Lee

A swashbuckling romp on the high seas with a daring young pirate queen.

The Hero and the Crown by Robin McKinley

McKinley's classic story of a dragon-slaying princess.

The Song of the Lioness Series by Tamora Pierce

Pierce's first and classic series about a smart, feisty warrior-in-training.