Vessel | Adriatic (II) |
| Sister ships | Celtic (II) | Cedric | Baltic (II) |
| Built by | Harland and Wolff Belfast |
| Total Service | 1907 - 1934 |
| White Star Line Service | 1907 - 1934 |
| Demise | Scrapped |
| Dimensions (ft imperial) | 709 (length) x 77 (breadth) x 53 (depth) |
| Tonnage | 24,251 |
| Speed | 17 |
| Hull construction | Steel |
| Engine configuration | Quadruple engine(s) geared to double screws |
| Details | The last of the 'Big Four' launched on the same day as the Cunard Line's R.M.S. Mauretania |
Vessel | Athentic |
| Sister ships | Corinthic | Ionic (II) |
| Built by | Harland and Wolff Belfast |
| Total Service | 1902 - 1962 |
| White Star Line Service | 1902 - 1927 |
| Demise | Scrapped |
| Dimensions (ft imperial) | 500 (length) x 63 (breadth) x 45 (depth) |
| Tonnage | 12,234 |
| Speed | 14 |
| Hull construction | Steel |
| Engine configuration | Quadruple engine(s) geared to double screws |
| Details | Built for White Star/Shaw, Savill and Albion joint service |
Vessel | Corinthic |
| Sister ships | Athenic | Ionic (II) |
| Built by | Harland and Wolff Belfast |
| Total Service | 1902 - 1931 |
| White Star Line Service | 1902 - 1931 |
| Demise | Scrapped |
| Dimensions (ft imperial) | 500 (length) x 63 (breadth) x 45 (depth) |
| Tonnage | 12,367 |
| Speed | 14 |
| Hull construction | Steel |
| Engine configuration | Quadruple engine(s) geared to double screws |
| Details | Built for White Star Line Australian service |
Vessel | Ionic (II) |
| Sister ships | Athenic | Corinthic |
| Built by | Harland and Wolff Belfast |
| Total Service | 1903 - 1936 |
| White Star Line Service | 1902 - 1934 |
| Demise | Scrapped |
| Dimensions (ft imperial) | 500 (length) x 63 (breadth) x 45 (depth) |
| Tonnage | 12,352 |
| Speed | 14 |
| Hull construction | Steel |
| Engine configuration | Quadruple engine(s) geared to double screws |
| Details | Built for White Star Line Australian service |
Vessel | Cretic |
| Sister ships | No sister ships |
| Built by | Hawthorn Leslie Newcastle |
| Total Service | 1902 - 1929 |
| White Star Line Service | 1903 - 1923 |
| Demise | Scrapped |
| Dimensions (ft imperial) | 582 (length) x 60 (breadth) x 38 (depth) |
| Tonnage | 13,518 |
| Speed | 15 |
| Hull construction | Steel |
| Engine configuration | Triple expansion engine(s) geared to double screws |
| Details | Ex Leyland Line's S.S. Hanoverian and ex Dominion Line's S.S.Mayflower |
Vessel | Arabic (II) |
| Sister ships | No sister ships |
| Built by | Harland and Wolff Belfast |
| Total Service | 1903 - 1915 |
| White Star Line Service | 1903 - 1915 |
| Demise | War loss |
| Dimensions (ft imperial) | 601 (length) x 66 (breadth) x 48 (depth) |
| Tonnage | 15,801 |
| Speed | 16 |
| Hull construction | Steel |
| Engine configuration | Quadruple engine(s) geared to double screws |
| Details | Ex Atlantic Transport Line's S.S. Minnewaska |
Vessel | Belgic (III) |
| Sister ships | No sister ships |
| Built by | New York Shipbuilding Co. USA |
| Total Service | 1903 - 1931 |
| White Star Line Service | 1911 - 1913 |
| Demise | Scrapped |
| Dimensions (ft imperial) | 490 (length) x 58 (breadth) x 39 (depth) |
| Tonnage | 9,748 |
| Speed | 14 |
| Hull construction | Steel |
| Engine configuration | Triple expansion engine(s) geared to double screws |
| Details | Ex Atlantic Transport Line's S.S. Mississippi |
Vessel | Republic |
| Sister ships | No sister ships |
| Built by | Harland and Wolff Belfast |
| Total Service | 1903 - 1909 |
| White Star Line Service | 1903 - 1909 |
| Demise | Accident |
| Dimensions (ft imperial) | 570 (length) x 68 (breadth) x 24 (depth) |
| Tonnage | 15,378 |
| Speed | 16 |
| Hull construction | Steel |
| Engine configuration | Quadruple engine(s) geared to double screws |
| Details | Ex Dominion Line's S.S. Columbus |
Vessel | Arabic (III) |
| Sister ships | No sister ships |
| Built by | A. G. Weser Bremen |
| Total Service | 1908 - 1931 |
| White Star Line Service | 1920 - 1931 |
| Demise | Scrapped |
| Dimensions (ft imperial) | 590 (length) x 70 (breadth) x 39 (depth) |
| Tonnage | 16,786 |
| Speed | 17 |
| Hull construction | Steel |
| Engine configuration | Quadruple engine(s) geared to double screws |
| Details | Ex North German Lloyd vessel. Ceded to White Star Line for war reparations |
Vessel | Ypiranga |
| Sister ships | No sister ships |
| Built by | Friedrich Krupp Kiel |
| Total Service | 1908 - 1950 |
| White Star Line Service | 1919 - 1920 |
| Demise | Wrecked (scrapped) |
| Dimensions (ft imperial) | 450 (length) x 55 (breadth) x 31 (depth) |
| Tonnage | 8,142 |
| Speed | 13 |
| Hull construction | Steel |
| Engine configuration | Quadruple engine(s) geared to double screws |
| Details | Ceded to Britain as war reparations |
Vessel | Lapland |
| Sister ships | No sister ships |
| Built by | Harland and Wolff Belfast |
| Total Service | 1909 - 1933 |
| White Star Line Service | 1914 - 1919 |
| Demise | Scrapped |
| Dimensions (ft imperial) | 606 (length) x 70 (breadth) x 39 (depth) |
| Tonnage | 17,540 |
| Speed | 17 |
| Hull construction | Steel |
| Engine configuration | Quadruple engine(s) geared to double screws |
| Details | Ex Red Star Line vessel |
Vessel | Laurentic (I) |
| Sister ships | Megantic |
| Built by | Harland and Wolff Belfast |
| Total Service | 1909 - 1917 |
| White Star Line Service | 1909 - 1917 |
| Demise | War loss |
| Dimensions (ft imperial) | 550 (length) x 67 (breadth) x 41 (depth) |
| Tonnage | 14,892 |
| Speed | 17 |
| Hull construction | Steel |
| Engine configuration | Combination engine(s) geared to triple screws |
| Details | Ex Dominion Line's S.S. Alberta. Mined, with the loss of 345 lives and 3 211 gold bars |
Vessel | Megantic |
| Sister ships | Laurentic (I) |
| Built by | Harland and Wolff Belfast |
| Total Service | 1909 - 1933 |
| White Star Line Service | 1909 - 1933 |
| Demise | Scrapped |
| Dimensions (ft imperial) | 550 (length) x 67 (breadth) x 41 (depth) |
| Tonnage | 14,878 |
| Speed | 16 |
| Hull construction | Steel |
| Engine configuration | Quadruple engine(s) geared to triple screws |
| Details | Ex Dominion Line's S.S. Albany |
Vessel | Mobile |
| Sister ships | No sister ships |
| Built by | Blohm & Voss Hamburg |
| Total Service | 1909 - 1933 |
| White Star Line Service | 1920 - 1920 |
| Demise | Scrapped |
| Dimensions (ft imperial) | 589 (length) x 65 (breadth) x 47 (depth) |
| Tonnage | 16,960 |
| Speed | 16 |
| Hull construction | Steel |
| Engine configuration | Quadruple engine(s) geared to double screws |
| Details | Ex Hamburg American Line's S.S Cleveland and ex U. S. Transport vessel |
Vessel | Olympic |
| Sister ships | Titanic | Britannic (II) |
| Built by | Harland and Wolff Belfast |
| Total Service | 1911 - 1935 |
| White Star Line Service | 1911 - 1935 |
| Demise | Scrapped |
| Dimensions (ft imperial) | 850 (length) x 92 (breadth) x 59 (depth) |
| Tonnage | 45,324 |
| 46,358 [1913] | |
| 46,439 [1920] | |
| Speed | 21 |
| Hull construction | Steel |
| Engine configuration | Combination engine(s) geared to triple screws |
| Details | The only one of the Olympic class to complete more than one commercial voyage. Served with distinction during WWI. The Old Reliable retired in 1935. |