The White Abacus is a 1997 science fiction novel by Damien Broderick.

It follows the story of Telmah Lord Cima who travels to Earth from a far-off world and becomes friends with a computer-augmented being called Ratio.

[1] The White Abacus was first published in the United States in March 1997 by Avon Eos in hardback and trade paperback formats.

[1] In April 1998 it was republished in mass market paperback format.

[1] The White Abacus won the 1997 Aurealis Award for best science fiction novel and the 1998 Ditmar Award for best Australian long fiction.