Vessels built or associated with the port of Amlwch
| Name | Tons | Built/ Known | Where | By | Rig | Bought | Owned or part owned | Master/Fate/Notes |
| Active | 175 | 1816 | Lancaster | Snow | 1846 | N.Treweek | Capt John Hughes | |
| Adventure | 75 | 1845 | Cape Breton | Schooner | 1848 | N.Treweek | Capt Owen Parry | |
| Ailsie | 98 | 1892 | Amlwch | Paynter | 3 Schnr | Platts of Oldham | Capt John Hughes. Managers at Llanfairfechan | |
| Albion | 82 | 1815 | Lancaster | Schooner | W.Thomas | Capts. J.Owen, J.Jones, W.Parry | ||
| Aligator | 9 | 1814 | Dulas | Robert Owen | Open boat | Capt William Evans | ||
| Alliance | 76 | 1858 | Amlwch | Treweek & Co | Schooner | Palmer & Co | Capt T.Owen | |
| Amanda | 193 | 1865 | PEI | Ross | Bgntine | 1866 | R.Jones, W. Thomas, W. Thomas Liv | Capt R.Jones. Sold |
| Amlwch | 76 | 1786 | Beaumaris | Brig | Amlwch Shipping Co | Capt Rowland Owen | ||
| Amlwch Packet | 37 | 1832 | Amlwch | Treweek Bros | Smack/schooner? | 1832 | N.Treweek… T.Jones of Bangor | Capt Griffith Jones. Wrecked Abererch 14th October 1881 |
| Anglesea | 149 | 1885 | Amlwch | Thomas | I.stmr | 1885 | W.Thomas. L.Thomas, Bilbao owners in 1894 | Capt W.Gibbon |
| Anglesea lass | 99 | 1854 | Rhyl | Schooner | W.Thomas | Capt W.Thomas | ||
| Anglesea Lass | 264 | 1871 | Sunderland | Barque | 1871 | W.Thomas | Capt D.Jones. Lost 1973 | |
| Anglesey | 632 | 1850 | Pictou NS | Barque | 1851 | N.Treweek | Capt Thos Morrison, W.E.Bell | |
| Anglesey | 158 | 1884 | Amlwch | Thomas | Ketch | Small iron screw | ||
| Ann Mulvey | 99 | 1842 | Chester | Schooner | 1854 | N.Treweek | Capt William Jones | |
| Apapa | Apapa | 7832 tone torpedoed 3 miles Nby E of Point Lynas with the loss of 77 lives ( 64 survivors) in November 1917 | ||||||
| Ardri | Small steamer built by Shearing in Glasgow in 1896 and brought by Thomas. Foundered 13 mines off Bardsey in 1936. | |||||||
| Arethusa | 712 | 1845 | Quebec | Ship | 1850 | N.Treweek | Capt Thos Morrison, J Hamilton | |
| Atlas | 66 | 1839 | Northwich | Schooner | 1854 | N.Treweek | Capt Henry Jones | |
| Barbara | 46 | 1825 | Rhuddlan | Sloop | 1853 | N.Treweek | Capt James Jones | |
| Barbara | 1082 | 1877 | Sunderland | Doxford | I.Barque | 1877 | W.Thomas | Capt R.H.Roberts |
| Baron Hill | 209 | 1876 | Amlwch | Thomas | Bgntine | 1876 | W.Postlethwaite | Capt J.Hughes A larger version of the Cumberland Lassie |
| Becca & mary | 1904 | Amlwch | Hugh Jones | for the Duddon Shipbuilding company in 1904. | ||||
| Black rock | ||||||||
| Blessing | Blessing | Built in Aberystwyth but used in Amlwch copper trade from 1770. | ||||||
| Blessing | Blessing | Built in Aberdovey but used in Amlwch copper trade from 1770. |