
Abhorsen is a fantasy novel by Australian writer Garth Nix, first published in 2003. It is the third book in the Old Kingdom series.

The Autumn Castle is a 2003 horror/fantasy novel by Kim Wilkins. It follows the story of Christine Starlight who has strong memories of her childhood friend, Mayfridh. Mayfridh was then abducted by the king and queen of a Germanic fairyland and is now on the throne of the Autumn Castle. Now the human and fairy worlds have joined with Mayfridh falling in love with Christine's partner and Christine venturing to the fairy world.

The Battle of Evernight is a fantasy novel written by Australian author Cecilia Dart-Thornton, published in 2003 by Warner Aspect. It is the third and final novel in the Bitterbynde trilogy and the sequel to The Lady of Sorrows.

Born of the Sea is a 2003 horror novel by Victor Kelleher. It follows the story of Madeleine Sauvage, Frankenstein's bride from Mary Shelley's story, if she wasn't destroyed and laying in the bottom of the sea and goes out in search of her creator.

The Dark is a fantasy novel written by Marianne Curley. It is the second book in the Guardians of Time Trilogy.

Degrees of Connection is a 2004 Ned Kelly Award-winning novel by the Australian author Jon Cleary. It was the 20th and last entry in the Scobie Malone series. Cleary decided to stop writing crime novels because he felt he was getting stale.

Eye of the Labyrinth is a fantasy novel written by Australian author Jennifer Fallon. It is the second in a trilogy titled The Second Sons.

Grass for His Pillow is the second novel in Lian Hearn's popular Tales of the Otori trilogy, published in 2003. The events in the novel cover a period of approximately 6 months, following directly after those in Across the Nightingale Floor.

The Great Fire (2003) is a novel by the Australian author Shirley Hazzard. It won the U.S. National Book Award for Fiction and a Miles Franklin literary award (2004). The novel was Hazzard's first since The Transit of Venus, published in 1980.

The Hamilton Case is a 2003 novel by Australian author Michelle de Kretser. The book won the Commonwealth Writers Prize and the Encore Award (UK). The work centres on the lives of the somewhat eccentric Obeysekere family, in particular Sam, and the 1930s setting explores themes of colonization in Ceylon, now called Sri Lanka. Michelle de Kretser is originally from Sri Lanka. The title refers to a fictional case involving the murder of an English planter in Ceylon, which Sam Obeysekere, a lawyer, attempts to solve. Time Magazine named the book as one of the five best novels of 2004, referring to the date published in the United States.

The High Lord is the third book in The Black Magician series by Trudi Canavan. Published in 2003, it is the sequel to The Novice and The Magicians' Guild and concludes the story of Sonea, a former slum-girl discovered to possess magical potential. Having earned the respect of her fellow students and her teachers, Sonea must face the terrible secret of the High Lord's use of forbidden Black Magic.

Jennifer Government is a 2003 dystopian novel by Max Barry, set in an alternate reality where most nations in the Americas and Oceania are dominated by powerful corporations and corporate coalitions, and where government power is extremely limited. It was a finalist for a Campbell Award in its year of eligibility, but did not win, and was included in The New York Times' annual list of notable books. The novel was retitled from Jennifer Government to Logoland in its German and Italian editions. In its Brazilian edition it was retitled to EU S/A, an abbreviation of Estados Unidos Sociedade Anônima, which roughly translates to United States, Inc.

Kittyhawk Down is a crime novel by Garry Disher published in 2003.

The Lambing Flat is the first novel by Australian author Nerida Newton; it was first published in 2003. She has since written a second novel, Death of a Whaler.

Myrren's Gift is the first book in the Quickening (series) trilogy by Fiona McIntosh. It details the journeys of Wyl Thirsk.

Rowan of the Bukshah is a 2003 children's fantasy novel by Australian author Emily Rodda. It is the fifth and final book in the Rowan of Rin series.

Scarecrow is the fifth Matthew Reilly novel, and the third to feature the main character Captain Shane Schofield, USMC. It was released in 2003.

Seven Types of Ambiguity is a 2003 novel by Australian writer Elliot Perlman.

Shanghai Dancing is a 2003 novel by Australian novelist Brian Castro.

Shantaram is a 2003 novel by Gregory David Roberts, in which a convicted Australian bank robber and heroin addict escapes from Pentridge Prison and flees to India. The novel is commended by many for its vivid portrayal of tumultuous life in Bombay.

Three Dog Night is a 2003 novel by Australian author Peter Goldsworthy.

The Touch is a historical novel by Colleen McCullough published in 2003. It is about the life of a Scotswoman, Elizabeth Drummond, who travels from her home in Kinross, Scotland to New South Wales in order to marry her wealthy cousin, Alexander Kinross. The story takes place over the latter half of the 19th century.

The Tyrant's Novel is a 2003 novel by Australian novelist Tom Keneally.

The Waterless Sea is the second book in The Chanters of Tremaris Trilogy by Kate Constable.

White Dog (2003) is a 2003 Australian novel by Peter Temple. The fourth novel in the "Jack Irish" series, it won the 2003 Ned Kelly Awards Best Novel for Crime Writing. It was reprinted in the United Kingdom in 2007 by Quercus.

Zombie Bums from Uranus is a novel by Australian children's author Andy Griffiths, and is the second part of Griffiths' Bum trilogy. The book was released in 2003 worldwide, however, the United States version was titled Zombie Butts from Uranus as opposed to Zombie Bums from Uranus.