← 1777 1776 1775 1778 in Denmark → 1779 1780 1781
Decades:	1750s 1760s 1770s 1780s 1790s
See also:	Other events of 1778 List of years in Denmark

Events from the year 1778 in Denmark.

• Monarch – Christian VII^[1]
• Prime minister – Ove Høegh-Guldberg

• 4 September – Conrad Alexander Fabritius (1731–1805) and Michael Fabritius (1739–1815), as well as all legitimate children of their then-deceased father Michael Fabritius (1697-1746), are ennobled by letters patent under the name Fabritius de Tengnagel.^[2]

• Johannes Ewald's opera The Death of Valder (written 1663) is performed for the first time.

• 1 March – Peter Christian Uldahl, piano maker (died 1820)
• 20 April – Bendix Frantz Ludwig Schow, mayor (died 1839)
• 21 December – Anders Sandøe Ørsted, jurist and politician, Prime Minister of Denmark (died 1860)

• 5 March – Hans Diderik Brinck-Seidelin, Supreme Court justice and landowner (born 1720)
• 8 March – Jean Henri Desmercières, businessman (born 1687)
• 8 October – Margrethe Marie Thomasine Numsen, court official (born 1705)