Family reunification refers to the process by which family members who have been separated due to migration or other circumstances are brought together and allowed to live together in the same country. It is a fundamental aspect of immigration policy that aims to preserve family unity, promote social cohesion, and support the well-being of individuals and families.

Under family reunification policies, individuals who have immigrated to a new country may be eligible to sponsor certain family members, such as spouses, children, parents, or siblings, to join them and settle in the host country. The specific eligibility criteria, requirements, and procedures for family reunification vary depending on the immigration laws and regulations of the country in question.

Family reunification typically involves submitting an application to the immigration authorities, providing evidence of the family relationship, meeting financial support requirements, and demonstrating the ability to provide suitable accommodation and support for the sponsored family member(s). Once the application is approved, the sponsored family member(s) are granted permission to immigrate to the host country and are typically issued a visa or residency permit.

Family reunification is considered a fundamental human right and is recognized as such in international law, including the Universal Declaration of Human Rights and the International Covenant on Civil and Political Rights. It is seen as essential for maintaining family ties, supporting social integration, and promoting the well-being of individuals and communities.

Family reunification policies vary widely among countries, with some offering generous provisions for sponsoring family members, while others have stricter eligibility criteria and quotas. Overall, family reunification plays a significant role in shaping immigration patterns and contributing to the diversity and cohesion of societies around the world.