The 2015 winner will be announced on Tuesday 13 October in a ceremony to be broadcast by the BBC.
The shortlisted titles are:
A Brief History of Seven Killings by Marlon James
Satin Island by Tom McCarthy
The Fishermen by Chigozie Obioma
The Year of the Runaways by Sunjeev Sahota
A Spool of Blue Thread by Anne Tyler
A Little Life by Hanya Yanagihara