Everton Lock-Up, sometimes referenced by one of its nicknames such as Prince Rupert's Tower or Prince Rupert's Castle is a village lockup located on Everton Brow in Everton, Liverpool. The Grade II listed building which was opened in 1787, was originally an overnight holding place where local drunks and criminals were taken by parish constables. Prisoners would then be brought before local Justices of the Peace for trial. Punishments would usually be similar to community service such as clearing ditches, unblocking drains or removing rubbish.
The 18th-century structure is one of two Georgian lock-ups that still survive in Liverpool; the other is in Wavertree.