Can you marry your sister in Canada?
Michael Gray
Updated on April 27, 2026
2 (1) Subject to subsection (2), persons related by consanguinity, affinity or adoption are not prohibited from marrying each other by reason only of their relationship. (2) No person shall marry another person if they are related lineally, or as brother or sister or half-brother or half-sister, including by adoption.
Can you marry siblings in Canada?
It is against the law to marry your parent, grandparent, child, grandchild, brother, sister, half-brother or half-sister. Polygamy: Having more than one spouse at a time is called polygamy. If you are already married, you cannot marry another person. It is against the law in Canada to have more than one spouse.Can you marry your aunt in Canada?
Cousin marriage — and marriage between a niece or nephew and their uncle or aunt — is legal in Canada, according to the federal Marriage (Prohibited Degrees) Act of 1990.Can you get married with your sister?
Siblings cannot marry in the United StatesMany states outlaw sexual relationships between siblings and between parents and their children, and no state allows siblings to marry.