Possibly the Titanic, due to the unexpected loss of life on the first voyage. But there are some other candidates for famous.
The Russian Battleship Potemkin had a mutiny of the crew in 1905 that was related to the Russian Revolution, and it is well known in Russia.
The British Lusitania was sunk by a German sub in 1915, and brought the US into WW 1.
The US Battleship Maine sunk in Cuba, resulting in the US going to war with Spain,
The Mayflower that brought the Pilgrims to New England.
Ships of Columbus's fleet (Nna, Pinta and Santa Maria) that reached the new world.
What do YOU think is the most famous?
Titanic is famous for many things. (Her amenties mostly, the first ever swimming pool to float on water, having the most largest dining room ever build on water.) Most of all, Titanic is famous of being the most largest ship ever built in 1912. Titanic was one of the most famous ships of her time.
Titanic.
The most famous ship probably is the Titanic.
Old Ironsides was the most famous ship
The Titanic.
The most famous ghost ship is "The Flying Dutchman" Their is a top ten list link below.
Titanic
Alabama (all the way across)
The Black Pearl
The most famous ship built at the Harland and Wolff shipyard was the Titanic.
The most famous painting ever is the Mona Lisa by Leonardo da Vinci.
Bozo The World's Most Famous Clown - 1958 Ship Shape Ship Mates 2-81 was released on: USA: 1959