The Guild Shop is a guild shop (sometimes known as provisioner shop) in Vesper which, during Ultima IV, was run by Long John Leary.
The Stranger finds Traveling Dan and Balthasar in it. Also to the west there is a secret door where Servile is hiding and to the east is a secret door where Friday is guarding a room of treasure.
The only similar shop in the game is the Pirate's Guild in Buccaneer's Den. The manual hints that The Guild Shop was supplied by the Pirate's Guild shop.
*Not listed. Available as option "D".