Sweden bans cousin marriage and other marriages between close relatives, law takes effect July 1, 2026

The new law means an unconditional ban on cousin marriages, and foreign cousin marriages will, as a general rule, not be recognized in Sweden.

The aim is to counteract honor-related oppression, violence and other pressures.

It will also not be possible to enter into a marriage where one person is related in direct descent to the other's siblings, nor will it be possible for half-siblings and siblings by adoption to marry.

The law will enter into force on July 1, 2026.