Its according to a report from the Irish penal reform trust.
The waiting list for psychology services at the Midlands prison is the highest in the country.
185 inmates in total need the service - without which they won't be able to fulfill basic requirements for parole boards.
Portlaoise prison comes in third on the list - 69 are waiting to see a psycologist there.
In total - more than two in five of all those on the list are serving sentences in the two Laois prisons.