Dannenberg is a surname. Notable people with the surname include:
Alice Dannenberg (1861–1948), Russian-born French painter Andrew Jess Dannenberg (born 1956), American physician Konrad Dannenberg (1912–2009), German-American engineer Martin Dannenberg (1915–2010), American insurance executive Peter Dannenberg (1930–2015), German musicologist, music writer and opera director Peter Andreivich Dannenberg (1792–1872), Russian general
See also Danneberg