| James B. Dunn | |
| Office: | Member of the South Dakota Senate |
| Term Start: | 1973 |
| Term End: | 2000 |
| Birth Name: | James Bernard Dunn |
| Birth Date: | June 27, 1927 |
| Birth Place: | Lead, South Dakota |
| Death Place: | Sturgis, South Dakota |
| Party: | Republican |
| Residence: | Lead, South Dakota |
| Alma Mater: | Black Hills State University |
James Bernard Dunn (June 27, 1927 – August 11, 2016) was an American politician in the state of South Dakota. He was a member of the South Dakota Senate from 1973 to 2000. Throughout his state senate term, he represented the 26th and 31st districts.[1] He was an alumnus of Black Hills State University and a veteran in the United States Army. He also sat briefly in the South Dakota House of Representatives from 1971 to 1972.[2] [3] Dunn died on August 11, 2016, at the age of 89.[4]