HMS Bulwark was a 74-gun third rate ship of the line

Ship of the line

A ship of the line was a type of naval warship constructed from the 17th through the mid-19th century to take part in the naval tactic known as the line of battle, in which two columns of opposing warships would manoeuvre to bring the greatest weight of broadside guns to bear...

 of the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

, launched on 23 April 1807 at Portsmouth

Portsmouth

Portsmouth is the second largest city in the ceremonial county of Hampshire on the south coast of England. Portsmouth is notable for being the United Kingdom's only island city; it is located mainly on Portsea Island...

. She was designed by Sir William Rule as one of the large class 74s, and was the only ship built to her draught. As a large 74, she carried 24 pdrs on her upper gun deck instead of the 18 pdrs found on the middling and common class 74s.

Bulwark was broken up in 1825.