What was the Titanic's port of registry?

The Titanic's port of registry was Liverpool. A port of registry is the place where a vessel is officially registered, and it is not necessarily the same as the port where the ship was built or began a particular voyage.

Liverpool was closely associated with the White Star Line, Titanic's owner and operator. The company's registered headquarters were there, and many of its major liners carried Liverpool as their official registry even when they sailed from other ports.

Titanic's maiden voyage began at Southampton on 10 April 1912, which is why Southampton is sometimes mistakenly given as the answer. Southampton was the departure port for the voyage to New York, while Liverpool was the ship's official registry port. Belfast, meanwhile, was the construction site.

This distinction is useful because Titanic is linked to three different British cities: Liverpool for registration and company identity, Belfast for construction, and Southampton for the start of its final voyage.