An ocean liner is a type of passenger ship primarily used for transportation across seas or oceans. Ocean liners may also carry cargo or mail, and may sometimes be used for other purposes. Only one ocean liner remains in service today.
The White Star Line was a British shipping company. Founded out of the remains of a defunct packet company, it gradually rose up to become one of the most prominent shipping lines 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.
SS Britannic was an ocean liner of the White Star Line. It was the first of three ships of the White Star Line to sail with the Britannic name.
RMS Celtic was an ocean liner owned by the White Star Line. The first ship larger than SS Great Eastern by gross register tonnage, Celtic was the first of a quartet of ships over 20,000 tons, the dubbed The Big Four. She was the last ship ordered by Thomas Henry Ismay before his death in 1899. The second liner of her name she was put into service in 1901. Her large size and her low but economical speed inaugurated a new company policy aiming to favour size, luxury and comfort, to the detriment of speed.
RMS Adriatic was a British ocean liner of the White Star Line. She was the fourth of a quartet of ships of more than 20,000 GRT, dubbed The Big Four. The ship was the only one of the four which was never the world's largest ship. However, she was the largest, the fastest, and the most luxurious of the Big Four, being the first ocean liner to have an indoor swimming pool and a Turkish bath.
SS Republic was an ocean liner built in 1871 by Harland and Wolff for White Star Line. It was intended to be the last of four vessels forming the Oceanic class, before two new ships were commissioned. After a rough maiden voyage from Liverpool to New York City on 1 February 1872, the ship was chosen to be on White Star Line's first voyage on the South Atlantic and Pacific line with four other ships, destined for Chile. In 1874, the construction of modern ships SS Germanic and SS Britannic led to SS Republic's becoming the standby vessel of White Star Line. It occupied this position for 15 years, and attempts were made to modernise it in 1888. When RMS Teutonic and RMS Majestic entered service in the following year, the Republic became surplus to White Star's needs.
SS Megantic was a UK 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.
SS Medic was a steamship built by Harland and Wolff in Belfast for the White Star Line which entered service in 1899. Medic was one of five Jubilee-class ocean liners built specifically to service the Liverpool–Cape Town–Sydney route. The ship's name pertained to the ancient Persian region of Media and was pronounced Mee-dic.
SS Gothic was a passenger-cargo liner launched in December 1947, though not completed until a year later. She became the most famous of the quartet when she was designated a royal yacht from 1952 to 1954.
SS Ionic was a steam-powered ocean liner built in 1902 by Harland and Wolff in Belfast for the White Star Line. She was the second White Star Liner to be named Ionic and served on the United Kingdom – New Zealand route. Her sister ships were SS Athenic and SS Corinthic.
SS Zeeland was a British and Belgian ocean liner of the International Mercantile Marine Co. (IMM). She was a sister ship to Vaderland and a near sister ship to Kroonland and Finland of the same company. Although her name was Dutch, it was changed during World War I to the less German-sounding SS Northland. She served for a time as a British troop ship under the name HMT Northland. Reverting to Zeeland after the war, the ship was renamed SS Minnesota late in her career. Zeeland sailed primarily for IMM's Red Star Line for most of her early career, but also sailed under charter for the White Star Line, the International Navigation Company, the American Line, and the Atlantic Transport Line, all IMM subsidiary lines. The pursers safe survived the scrapyard at Inverkeithing and after residing in a wardrobe for 80 years is currently on display in a local private home.
The Athenic-class ocean liners were a three ship class of ocean liners built by the Harland & Wolff shipyard for the White Star Line in the early 20th century.
The "Big Four" were a quartet of early-20th-century 20,000-ton ocean liners built by the Harland & Wolff shipyard for the White Star Line, to be the largest and most luxurious ships afloat. The group consisted of Celtic, Cedric, Baltic and Adriatic.
SS Merion was an ocean liner built in 1902 for the American Line, a subsidiary line of the International Mercantile Marine (IMM). She also sailed for the Red Star Line and the Dominion Line—both subsidiary lines of IMM—during her passenger career. After the outbreak of World War I she was bought by the British Admiralty and converted to serve as a decoy resembling the Royal Navy battlecruiser HMS Tiger. In May 1915, while posing as Tiger in the Aegean Sea, Merion was sunk by the German submarine SM UB-8.
SS Arabic was a British-registered ocean liner that entered service in 1903 for the White Star Line. She was sunk on 19 August 1915, during the First World War, by German submarine SM U-24, 50 mi (80 km) south of Kinsale, causing a diplomatic incident.
SS Doric was a British ocean liner operated by White Star Line. She was put into service in 1883. Built by the Harland and Wolff shipyards in Belfast, she was the sister ship of the Ionic which was put into service a few months earlier. Although the original purpose of the construction of the two ships was not known with certainty, both began their careers chartered by the New Zealand Shipping Co. which operated them on the route from London to Wellington.
SS Athenic was a British passenger liner built by Harland & Wolff shipyards for the White Star Line in 1901.
The SS Scandinavian was a steamship built at Harland & Wolff in Belfast which entered service as an ocean liner in 1898. The ship changed names and owners several times; she was originally built for the Dominion Line and was known as New England, in 1903 she was transferred to the White Star Line and renamed Romanic. In 1912 she was sold to the Allan Line and renamed Scandinavian, the name which she retained for the rest of her career.
The Jubilee class were a group of five passenger and cargo ocean liners built by Harland and Wolff at Belfast, for the White Star Line, specifically for the White Star Line's service from the UK to Australia on the Liverpool–Cape Town–Sydney route. The five ships in order of the dates they entered service were:
United Kingdom 
White Star Line 
Liverpool, United Kingdom 
