The 1755 earthquake may refer to
1755 Lisbon earthquake (great, tsunami), off the coast of Portugal on November 1 or to a style of architecture following this event, Earthquake Baroque 1755 Cape Ann earthquake (tsunami), near the British Province of Massachusetts Bay (present-day Massachusetts, USA) on November 18 1755 Meknes earthquake (great, local), affecting Morocco, dated November 18–19 or November 27 by various sources
See also List of historical earthquakes