Egholm is a manor house and estate situated on the Hornsherred Peninsula, between Kirke Hyllinge and Skibby, in Lejre Municipality, some 60 km west of Copenhagen, Denmark.

It is believed that it was built for Jacob Nielsen, Count of Halland, a grandson of Valdemar II.

In 1436, he passed a share in the estate to his sister, Gisele Podebusk, who was married twice, first to Hans Grubendal and then to Jens Due Thott.

[2] Egholm was later ceded to the brothers Eiler and Niels Mogensen Hak, probably as an endowment by Gisele Podebusk and Jens Due, although they were not related and their relationship remains unknown.

He later established a new manor from part of the estate, naming it Krabbesholm after his wife's family.

Rosenkrantz fell out of favour at the court after opposing the new Absolute monarchy and was forced to transfer all his estates to his daughters and sons-in-law.

[4] Iver Rosenkrantz died in 1745 and his widow Charlotte Amalie Skeel then owned the estate until her death in 1763.

He sold Egholm to count Christian Conrad Sophus Danneskiold-Samsøe and Lars Lassen just two months later.

On her death in 1902, it was passed on to her younger sister, Ebba Wilhelmine Haffner, who was married to a Swedish count.

The next owner was her son, Erik Alfred Wolfgang Haffner Piper, a Swedish count.

The main building and park were then disjoined from the home farm (avlsgården) which was sold to the manager.

Egholm Museum was inaugurated in 2012 and features Ole Falck's extensive collection of firearms and accoutrements.

The museum starts with a display of exhibits about Danish and German soldiers and material from the occupation of Denmark during World War II.

The section on World War II ends with an exhibition about the Danish resistance movement.

Exhibits include a stagecoach, a stuffed bison, antique weapons and artifacts from that time.