HMS Trinidad was a Royal Navy Fiji-class light cruiser. She was lost while serving in the Arctic on convoy duty after being damaged escorting PQ 13 in 1942.

The Fiji-class cruisers were a class of eleven light cruisers of the Royal Navy that saw extensive service throughout the Second World War. Each ship of the class was named after a Crown colony or other constituent territory of the British Commonwealth and Empire. The class was also known as the Colony class, or Crown Colony class. Developed as more compact versions of the preceding Town-class cruisers, the last three were built to a slightly modified design and were sometimes also called the Ceylon class.