Is It Legal To Marry Your Cousin In Florida 

When it comes to cousin marriage, Florida laws are more restrictive than many other states. Here’s a look at what types of first cousin relationships are prohibited versus permitted.

Marriages Between Direct Lineal Relatives are Illegal

Florida law prohibits marriages between people who are lineal descendants or ancestors of each other. This includes:

  • Parents and children
  • Brothers and sisters
  • Grandparents and grandchildren
  • Aunts/uncles and nieces/nephews

Any attempt to marry a direct lineal relative in Florida constitutes a felony offense. It can be punished by up to 5 years in prison.

Relationships With Collateral Relatives Vary

However, marriages between collateral first cousins are treated differently under Florida law. Collateral relatives share a common ancestor but are not directly descended from each other. This includes relationships like:

  • First cousins
  • First cousins once removed
  • Second cousins

Marriages between these types of collateral first cousins are legal in Florida. You can marry your first cousin in Florida without any issue.

No Restrictions on Double First Cousins

Notably, Florida also places no restrictions on marriage between double first cousins. Double cousins are produced when two siblings from one family reproduce with two siblings from another family.

So even if you and your partner are double first cousins, you can still legally get married in Florida. Your close genetic connection does not prohibit marriage as it does with direct relatives.

Compare to Other States

It’s important to remember that cousin marriage laws can vary significantly by state. While permitted in Florida, marriages between first cousins are prohibited in nearby states like Georgia and Alabama.

Some states allow cousin marriage but impose requirements like testing and counseling. Be sure to check regulations in your home state if marrying an out-of-state cousin.

Cultural Stigma Still Exists

Even though marriages between first cousins are legal in Florida, social attitudes are often still unfavorable. In fact, over half of states completely prohibit cousin marriage.

So while your marriage may be recognized legally, you may still face prejudice or judgment from others. The cultural stigma persists even in states with the most permissive laws.

Why Restrict Close Relatives?

Supporters of banning certain close relative marriages argue it helps prevent developmental issues in potential children. Some studies show an increased risk of birth defects and stillbirths for babies born to close blood relatives.

Proponents point out that Florida does not prohibit cousin relationships entirely, only those with the highest genetic risks like direct descendants. This indicates an attempt to balance public health risks with marriage freedoms.


Florida allows first cousin marriage but prohibits marriage, sex, and reproduction between direct lineal ancestors and descendants like siblings. Critics argue it should not interfere in consensual adult relationships, while supporters cite genetic concerns. Ultimately, the law aims to strike a balance

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