Bonnesen is a surname. Notable people with the surname include:
Beatrice Bonnesen (1906–1979), Danish film actress Carl Johan Bonnesen (1868–1933), Danish sculptor Edith Bonnesen (1911–1992) member of the Danish resistance during World War II Erling Bonnesen, Danish politician Tommy Bonnesen (1873–1935), Danish mathematician
See also Bonnesen's inequality, geometric term