The men, aged between 21 and 35, were held by the US for two years, and were not given a trial in front of a judge.
Home Secretary David Blunkett said they would be questioned by anti-terrorism police when they flew in from the jail in Guantanamo Bay.
They were arrested at the time of the war in Afghanistan in 2001.
They'll be checked by doctors, and may be arrested again and held for several days.
Shanaz Ahmed, whose elder brother Ruhal is among the men expected to return, said he hadn't heard anything from the government.
Four other British people held in the camp will stay in the US, where they will be put on trial.