| James Robert Mann | |
| Image Name: | James Robert Mann (Illinois) in 1916 (cropped).jpg |
| Order: | House Minority Leader |
| Term Start: | March 4, 1911 |
| Term End: | March 3, 1919 |
| Preceded: | Champ Clark |
| Succeeded: | Champ Clark |
| Office2: | Leader of the House Republican Conference |
| Term Start2: | March 4, 1911 |
| Term End2: | March 3, 1919 |
| Predecessor2: | Joseph Gurney Cannon |
| Successor2: | Frederick H. Gillett |
| Order3: | Member of the U.S. House of Representatives from Illinois |
| Constituency3: | (1897–1903) (1903–22) |
| Term Start3: | March 4, 1897 |
| Term End3: | November 30, 1922 |
| Preceded3: | J. Frank Aldrich |
| Succeeded3: | Morton D. Hull |
| Office4: | Chicago Alderman from the 32nd Ward |
| Term Start4: | 1892 |
| Term End4: | 1896 |
| Party: | Republican |
| Birth Date: | 20 October 1856 |
| Death Place: | Washington, D.C. |
| Birth Place: | Bloomington, Illinois |
| Resting Place: | Oak Woods Cemetery |
| Education: | University of Illinois Union College of Law |
James Robert Mann (October 20, 1856 - November 30, 1922) was an American politician and attorney who served as a member of the United States House of Representatives from Illinois from 1897 to 1922. He was a member of the Republican Party, and served as House Minority Leader from 1911 to 1919.
James Robert Mann was born near Bloomington, McLean County, Illinois, on October 20, 1856. His older brother was Frank Irving Mann (1854–1937) farmer, editor of the Prairie Farmer news publication, and author of The Farmers Creed.
Mann attended University of Illinois and graduated in 1876. He graduated from Union College of Law in 1881 and became a lawyer in Chicago. Mann held several local political offices before serving in the House of Representatives.
He was admitted to the Illinois bar in 1881 and commenced his practice in Chicago. He held several local offices before being elected as a congressman:
Congressman Mann was one of the sponsors of the Mann-Elkins Act, which gave more power to the Interstate Commerce Commission to regulate railroad rates. He is probably best known for his authorship of the Mann Act of 1910, which was a reaction to the "white slavery" issue and prohibited transportation of women between states for purposes of prostitution. He introduced legislation that became the Pure Food and Drugs Act of 1906.
He was considered to be a leader in the cause of amending the United States Constitution to grant suffrage to women. However, he was quoted as saying, "'They should have been at home where they belonged,' referring to the women in the pageant."[2] He was a leading opponent of the Harrison Narcotics Tax Act and Prohibition, despite the popularity of such legislation amongst his fellow Midwestern progressives.
Mann died in Washington, D.C., of pneumonia on November 30, 1922, at age 66 before the close of the 67th United States Congress.[3] He was interred in Oak Woods Cemetery in Chicago.