Dracula Prince of Darkness will be the first movie to be reissued in the HD format, available in the territory in March through StudioCanal.
The Reptile, The Plague of The Zombies, The Devil Rides Out, Rasputin the Mad Monk and The Mummy's Shroud will follow later this year.
Hammer will also reissue its iconic films The Curse of Frankenstein, Dracula and The Mummy in the new format, complete with newly-filmed extras, including interviews with cast members.
StudioCanal, a key Hammer backer, has teamed up with Anolis Entertainment, Pinewood Studios and HTV for the initiative. Materials for the project were provided by Hammer's US partners Twentieth Century Fox, Warner Bros and Paramount Pictures.
"Our decision to restore some of Hammer's most famous titles not only allows existing fans to experience the films again in high definition, but also encourages a new global audience to discover Hammer for the first time," said Hammer president and CEO Simon Oakes.
Hammer was revived in 2010 following a £25 million investment from Endemol founder John de Mol. It has since backed Let The Right One In remake Let Me In, and the upcoming Daniel Radcliffe-starring Woman in Black.
Watch a trailer to Dracula Prince of Darkness below: