| William Gallagher | |
| Image Name: | William J. Gallagher (Minnesota Congressman).jpg |
| Caption: | Frontispiece of 1949's William J. Gallagher, Late a Representative |
| State: | Minnesota |
| District: | 3rd |
| Party: | Democratic |
| Term Start: | January 3, 1945 |
| Term End: | August 13, 1946 |
| Preceded: | Richard Pillsbury Gale |
| Succeeded: | George MacKinnon |
| Birth Name: | William James Gallagher |
| Birth Date: | 13 May 1875 |
| Birth Place: | Minneapolis, Minnesota |
| Death Place: | Rochester, Minnesota |
| Occupation: | editor, proofreader, street sweeper |
William James Gallagher (May 13, 1875 - August 13, 1946) was a Representative to the U.S. Congress from Minnesota; born in Minneapolis, Hennepin County, Minnesota; attended the public schools, and was graduated from North High School in 1894; engaged as an editorial employee and proofreader in Minneapolis, MN, in 1895 and 1896; moved to Spokane, Washington, in 1897 and continued his former pursuits with a labor journal until 1899; returned to Minneapolis, and engaged as a trucker and clerk in freight houses until 1919; employed as a street sweeper for Hennepin County 1919 - 1927 and for the city of Minneapolis, from 1927 until his retirement in 1942; was elected as a Democrat to the 79th congress, and served from January 3, 1945, until his death; had been renominated to the 80th congress in 1946; died in a hospital at Rochester, Minnesota, August 13, 1946; interment in Crystal Lake Cemetery, Minneapolis, Minnesota.