1643 in Denmark

Events from the year 1643 in Denmark.

Incumbents

 * Monarch – Christian IV
 * Steward of the Realm – Corfitz Ulfeldt

Events

 * Start of the Torstenson War (1643–1645)

Births

 * 19 February – Bolle Luxdorph, civil servant and landowner (died 1698 in Sweden)

Full date missing

 * Marie Grubbe, noblewoman (died 1718)

Deaths

 * Sophia Brahe, horticulturalist and student of astronomy, chemistry and medicine (born 1556)