Kevin Anthony Wyatt, also known as David Edge, failed to return to an "approved premises" in Accrington, Lancashire, earlier this month. The sex offender, 37, was handed a 10-year prison sentence for rape in 2016.
But he's fled authorities and is on the loose, police say.
Wyatt has a number of distinctive features to help spot him, including a cross tattoo with the word "grandma" on his left arm.
Manchester Evening News reports he has other tattoos, such as "2 GUNS" inked on his back and a tattoo of a bird on his chest.
He is described as white, 5ft 11in tall and of stocky build.
Wyatt has links to several areas in Cumbria, including Barrow-in-Furness, Whitehaven, Carlisle and Dalton-in-Furness.
He also has connections to Blackpool, Lancashire, and Worcester.
Police are very concerned following his disappearance.
Detective Constable Kyle Hazelaar, of Lancashire Police, said: "Wyatt is wanted on prison recall after failing to return to approved premises.
"He is considered a high risk offender and he should not be approached.
"If you have any information about his whereabouts please come forward."