A galleon pole is commonly referred to as a "spar" or a "mast." It is a long, slender pole used on ships to support sails or rigging.
I believe it is called a "spar".
It is called mast.
If you mean the vertical poles to which sails are attached, these are called masts.
It is called the mast
If you mean the vertical poles to which sails are attached, these are called masts.
mast-a vertical spar to support sails on a ship
The pole on a sailboat that holds the sails is called the "mast." It is a vertical structure that supports the sails and rigging, allowing the boat to harness wind power for propulsion. The height and design of the mast can vary depending on the type of sailboat and its intended use.
Masts, or see: http://wiki.answers.com/Q/What_are_ship_poles_calledfor a more indepth answer.
The mast
A pole on a boat that holds spars or sails.
The pole you are referring to is called the mast. If the boat only has one mast it is usually not in the middle of the boat but is normally found in the forward third of the boat.