Anglerverband Niedersachsen e.V. (AVN) is the umbrella organization for angling clubs in Lower Saxony, working to support anglers, protect fish and improve aquatic habitats. It represents its member clubs and their interests in dealings with the public, policymakers, media and authorities. The association promotes the sustainable use of nature alongside conservation, drawing on a team with scientific expertise and practical experience.

AVN offers member clubs advice on fish and water management, fishing rights and conservation, as well as insurance coverage, training and discounted services. Its professional services include water and fish population surveys using electrofishing, nets and traps, habitat mapping, fish rescues and guidance on fish mortality. The association also provides training for water wardens and youth leaders, and organizes environmental education and activities for young people.

Its conservation work includes projects to protect native species such as eels, grayling, crayfish and burbot, research into invasive species, and initiatives to improve rivers and other habitats. AVN also shares fisheries information through publications, public events, press work, news and educational resources.