Moses Edwin Clapp (May 21, 1851 – March 6, 1929) was an American lawyer and politician.
Born in Delphi, Indiana, Clapp moved with his parents to Hudson, Wisconsin. He went to University of Wisconsin Law School and practiced law in Hudson, Wisconsin. He was district attorney for St. Croix County, Wisconsin. He then moved to Fergus Falls, Minnesota where he practiced law.
He served as the Minnesota Attorney General from 1887 until 1893. In 1900, he entered the special election for Minnesota's seat in the United States Senate that was made vacant by the death of Cushman Davis. He won that election, and was later reelected in 1904 and 1910 for two additional terms. He served in the Senate from January 28, 1901 to March 4, 1917, a term that spanned the 57th, 58th, 59th, 60th, 61st, 62nd, 63rd, and 64th Congresses. He was not renominated by the party in 1916. Clapp, along with Hiram F. Stevens, Ambrose Tighe, Thomas D. O'Brien, and Clarence Halbert, was also a co-founder of William Mitchell College of Law.
|Moses Edwin Clapp|
|United States Senator
January 28, 1901 – March 4, 1917
|Preceded by||Charles A. Towne|
|Succeeded by||Frank B. Kellogg|
|8th Minnesota Attorney General|
|Preceded by||William J. Hahn|
|Succeeded by||Henry W. Childs|
|Born||May 21, 1851
|Died||March 6, 1929 (aged 77)|
|Alma mater||University of Wisconsin–Madison|
William J. Hahn
|Minnesota Attorney General
Henry W. Childs
Charles A. Towne
|U.S. Senator (Class 1) from Minnesota
Served alongside: Knute Nelson
Frank B. Kellogg