Fancy Dress Halloween Events In London

Whether you fancy cruising around the city like a cat, demonically dancing 'til the early morning, or spending your witching hours sipping on creepy concoctions, we've got the party for you. From ghoulish gallivanting in the West End to prancing like a pumpkin in creepy ballrooms, these are the very best fancy dress Halloween events in London.

Looking for more Halloween events in London? Click here.

Last edited by Lauren Cole

Last updated on 12th November 2025

Alcotraz London: Cell Block Two-One-Two

1697 reviews

@ Alcotraz Penitentiary: London on Various dates from Tuesday 18th November 2025

Over at Alcotraz, they have your fancy dress sorted for you; a bright orange prison jumpsuit. Whack it on and head inside the secret jail, where you will sneak contraband liquor in past the warden. The best bit? The guards will then shake you up tasty bespoke cocktails.