Hasenclever is a German surname. Notable people with the surname include: Johann Peter Hasenclever (1810–1853), German painter Peter Hasenclever (1716–1793), German ironmaster, worked in New Jersey and New York Sophie Hasenclever (1823–1892), German poet and translator Walter Hasenclever (1890–1940), German writer Wilhelm Hasenclever (1837–1889), German politician German-language surnames de:Hasenclever