In Denmark, sperm and egg donations are permitted under the Lov om assisteret reproduktion i forbindelse med behandling, diagnostik og forskning (Act on Assisted Reproduction). Embryo donations and surrogacy are not permitted.

The anonymity of persons donating sperm and eggs is legally protected. According to sections 17 and 20 of the Act on Assisted Reproduction, the Minister of Health can establish more detailed rules regarding donations, including anonymity, compensation, and data retention. This has been executed in the Bekendtgørelse om assisteret reproduktion. According to section 10, an egg donor can remain anonymous, and according to section 15, the sperm donor can remain anonymous. In this case, only information about the genetic parents’ skin color, hair color, eye color, height and weight, or blood type if required, is provided. Donors can decide whether they want to provide their sperm or eggs anonymously or openly. Before 2006, only anonymous donations were allowed. After 2006, open sperm donations were only possible in private clinics, not in public hospitals. This was particularly problematic for women with fertility problems who required medical treatment, as they could only choose anonymous donors. Since 2013, non-anonymous donations are also allowed in public hospitals. Prospective parents can chose if they want an anonymous or an open donations. In general, open donations are more expensive.

It is estimated that approximately 20.000 children were conceived through egg and sperm donation in Denmark.

There is a national limit of 12 children conceived through a person’s sperm or eggs (Sections 11 and 16 of the Act on Assisted Reproduction, respectively), but there are exceptions for siblings. For men recruited before March 1, 2013, the limit within Denmark is 25 children.

However, Denmark is a centre of cross country donations. According to newspaper report, Danish sperm banks ship 90 percent of their semen to other countries. Many parents are also coming to Denmark to buy sperm and eggs, as fertility centres offer a very client orientated service with internet catalogues of donors. Accordingly, it is common that one donor can create a large number of offspring. In 2025, it became known that sperm from a Danish cancer-risk donor was used to conceive at least 67 children across Europe.

Two donor-conceived persons have filed a legal actain in 2025 against the Danish state, claiming that the current law which allows anonymous donations violates their human rights, specifically their right to family life. If their claim is succesful this could also change the law in Denmark.

The association of Donor conceived persons in Denmark is called „Donorbørns Vilkår“.