The Fabritius de Tengnagel family is a Danish and Norwegian noble family of German origin.

[1] The family originated from Johannes Fabritius (1620–71) of Brandenburg, Prussia.

The genus immigrated to Denmark with his son Herman Fabritius (1667-1729).

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), were on 4 September 1778 ennobled by letters patent under the name Fabritius de Tengnagel.

[2]