Arbeitsgemeinschaft Genealogie Schleswig-Holstein e.V. (AGGSH) is a nonprofit association founded in 2003 to support the exchange of knowledge and collaborative research in history, genealogy, and historical population records. Based in central Schleswig-Holstein, it serves as an information hub for family researchers and people interested in the region’s past.

The association holds several AGGSH Forums each year, bringing members and visitors together for talks, discussion, personal connections, book viewing, and event planning. It also organizes excursions and shares updates on research projects and local archives. Its website provides access to a wide range of genealogical resources, including databases on emigration, passenger lists, censuses, grave markers, wills, and historical records. These materials cover places and communities across Schleswig-Holstein and beyond.

AGGSH also publishes articles and family-history research on subjects such as regional families, notable ancestors, migration, and local history. Through its events, publications, and shared databases, the association helps researchers discover sources, exchange expertise, and explore family connections across generations.