Carlos de Eizaguirre, Shipwreck off Cape Town, South Africa

The Carlos de Eizaguirre was a steam passenger liner approximately 114 meters long, operating in international service during the early 20th century. The vessel carried passengers and cargo between European and Asian ports, powered by engines designed for long ocean crossings.

The vessel was built in England in 1903 and initially operated under different names before being renamed Carlos de Eizaguirre in 1910. It remained in service for about a decade until a wartime incident brought its operation to an end.

The ship was named after Juan Carlos de Bailly Eizaguirre (1817–1900), a Spanish banker and former director of the Compañía Transatlántica Española, not a captain. In Spain it became known as the "Titanic catalán", and the 1917 sinking caused panic at Barcelona harbour among relatives of the passengers.

The wreck lies about 25 miles off Cape Town, near Robben Island, at a position recorded as roughly 33°46′ S, 17°59′ E. It is not a dive site: the ship broke in two and sank in minutes, and no public access or mooring exists. The nearest land reference is the Robben Island lighthouse, toward whose light lifeboat number six rowed.

The ship's management sent coded telegrams to its offices reading "Termidor permutar transformado riel cerca de joya Robben", meaning the Eizaguirre was totally lost near Robben Island. The company withheld the news for fear it lacked insurance against acts of war.