Ottenberg is a surname. Notable people with the surname include:
Hans-Günter Ottenberg (born 1947), German musicologist and teacher Mel Ottenberg, American fashion designer Nettie Ottenberg (1887–1922), Russian-born American social worker and advocate for women's suffrage Miriam Ottenberg (1914–1982), American journalist Reuben Ottenberg (1882–1959), American physician and haematologist