Osseo is a small city in Hennepin County, Minnesota, United States. As of the 2010 census it had a population of 2,430, and in 2018 the estimated population was 2,757.
It is said that "Osseo" is derived from the Ojibwe name waaseyaa meaning "there is light", although more commonly known as "Son of the Evening Star". Henry W. Longfellow mentions Osseo in his poem The Song of Hiawatha. It is claimed that Longfellow visited Osseo while in St. Anthony.
The area that is now Osseo was settled before organized local government. It was on what Pierre Bottineau named "Bottineau Prairie" in 1852, and the community was called Palestine. In 1856 part of the town was platted as Osseo and another part as "City of Attraction". Official Minnesota Territory surveys placed the settlement on the border of two townships. When Brooklyn Township and Maple Grove Township organized, Osseo (and City of Attraction, which later merged) was governed by those two governments. Osseo incorporated on March 17, 1875.
The ethnic groups that moved in after Native tribes were removed were mostly French Canadians, New Englanders, Swiss and Germans.