List of shipwrecks in 1748

The List of shipwrecks in 1748 includes some ships sunk, wrecked or otherwise lost during 1748.

Early 1748 (N.S.)
Prior to 1752, when the Calendar Act set 1 January as the beginning of the New Year in the British Empire, Britain and its colonies observed the first day of the new year on 25 March. For those wrecks that happened in what would now be considered January, February and March 1748 under the calendar system used all over the world, bur which was considered January, February and March of "1747" on the archaic calendar, please refer to their unusual placement in the latter sections of the article List of shipwrecks in 1747.

April
1748 did not begin on 1 January! (except in non-British nations such as Spain, Portugal, France, Poland, Italy, where 1748 began on 1 January. Under the old system abandoned by Britain more than 275 years ago, the year 1748 officially began on 25 March.