SS Megantic was a British transatlantic ocean liner that was built in Ireland and launched in 1908. She was one of a pair of sister ships that were ordered in 1907 by Dominion Line but completed for White Star Line.

The White Star Line was a British shipping line. Founded out of the remains of a defunct packet company, it gradually rose up to become one of the most prominent shipping companies in the world, providing passenger and cargo services between the British Empire and the United States. While many other shipping lines focused primarily on speed, White Star branded their services by focusing more on providing comfortable passages for both upper class travellers and immigrants.