The prison opened in 1891
The Isle of Man's current prison could be opened up for public tour once prisoners and staff have been moved to a new £47m jail.
The government said it was considering opening the Victoria Road prison once the move to Jurby is complete.
The move has been delayed by disputes over travel expenses for staff.
The Victoria Road prison is having an open event for former staff next week, hosted new prison governor Alison Gomme and deputy prison governor Colin Ring.
The event is being held next Thursday lunchtime.
Mr Ring said: "This is an opportunity for staff to renew old acquaintances and share their experiences of working at Victoria Road.
"It will also provide a final chance to take a look round the old jail before is closes down and prisoners are transferred to Jurby."
Victoria Road jail was opened in 1891.