Rosecrans (a form of Rosenkranz) may refer to:

• Sylvester Horton Rosecrans (1827–1878), American Roman Catholic bishop
• William Rosecrans (1819–1898), American army officer during the American Civil War

• Rosecrans, Illinois, an unincorporated community in Illinois, United States
• Rosecrans, Wisconsin, an unincorporated community in Wisconsin, United States

Note: All of the below are direct or indirect namesakes of General William Rosecrans (see above), all located in the United States.

• Rosecrans Avenue, a major east-west highway in Los Angeles and Orange Counties, California
• Rosecrans Hills, Los Angeles County, California
• Rosecrans (LACMTA station), station on the Los Angeles County Metropolitan Transit Authority System
• Fort Rosecrans National Cemetery, San Diego, California
• Rosecrans Air National Guard Base, Saint Joseph, Missouri
• Rosecrans Memorial Airport, Buchanan County, Missouri
• Rosecrans (ship), a tanker lost off the mouth of the Columbia River, on January 14, 1913 -- see Coast Guard Station Point Adams
• U.S.A.T. Rosecrans two different troop ships operated by the Army Transport Service