Wolfgang Griesert is Lord Mayor of Osnabruck. Griesert has previously represented the city of Osnabrück as a member of the Ecology Committee of the German Association of Cities, the European Committee, the Economy and Transport, Ecology Committee, Urban Planning Committee, at the Task Force of the Head of the Municipal Planning and Building Control Office for Lower Saxony as well as at the Task Force of Environment Protection for Lower Saxony. Griesert is involved in clerical welfare and social work of the Protestant church district in Osnabrück, the Society for the Prevention of Cruelty to Animals Osnabrück as well as the Friends of the Botanical Garden Osnabrück. Also, he is part of the International Association of Historical Towns in the German-speaking World, the main committee of Forum City and he is also a member of the Chamber of Architects Lower Saxony, the Society for the Promotion of Osnabrück Peace Talks, Family Alliance Osnabrück and in the citizen association Darum, Gretesch, Lüstringen.