Jens Michelsen Beck (1 January 1721 – 29 May 1791) was a Danish surveyor, cartographer, landowner and planter.

On the island of Saint Croix in the Danish West Indies, he owned the Beck's Grove plantation.

[2] Beck created the first town plan for the city of Frederiksted as well as one of the most frequently reproduced historical maps of Saint Croix.

[3] Beck's son Michael returned to the island to take over the plantation but died shortly thereafter in a hurricane that destroyed many of the buildings, crops and forest.

The second oldest daughter Christiane Beck (1761-1834) was married to the historian and statesman Ove Malling [da] .

The third oldest daughter Louise Henriette (1760-1831) was married to the Supreme Court attorney Peter Herlef (1756-).