List of Famous people named Otto

Otto Canella was Consul of the Republic of Genoa in 1133, and an ancestor of the House of Grimaldi, the family that currently rules Monaco. According to the 19th-century historian Gustave Saige, Canella's eldest son, Bellamuto, was also a Consul of Genoa, even nine years before Canella himself achieved the position. The Princely Family of Monaco take their name, Grimaldi, from his youngest son Grimaldo. Grimaldo became a Consul of Genoa in 1162.

Otto Fabricius was a Danish missionary, naturalist, ethnographer, and explorer of Greenland.

Carl Ernst Otto Kuntze was a German botanist.

Otto Warburg, was a German-Jewish botanist. He was also a notable industrial agriculture expert, and president of the Zionist Organization from 1911 to 1921.

Otto Seitz, was a 19th-century German painter; born 3 September 1846 in Munich. As a professor with the Academy of Fine Arts, Munich, he was the mentor of many major artists.