James Dennis "Jimmy" Burns (July 28, 1865 – January 2, 1928) was an American businessman, hotel operator, politician, and baseball team owner. He was elected sheriff of Wayne County, Michigan, and served a four-year term. He also served three times as a delegate from Michigan to the Democratic National Convention, in 1908, 1912, and 1916. He was also the first owner of the Detroit Tigers in Major League Baseball, owning the club during the inaugural 1901 season.
Burns was born in 1865 at Springwells, Michigan, a district that was later incorporated into the City of Detroit. He was the sixth of eight children born to Peter and Hanorah (O'Callaghan) Burns. His father operated a brickworks that supplied bricks to construct many of the important buildings in Detroit. After being educated in the public schools of Springwells and Detroit, he joined his brothers and father in the brickworks business. After his father died, he continued to operate the brickworks with his brothers.
As a teenager, Burns was a boxer and wrestler and won the state amateur championship as a middleweight in both events. He did not compete professionally, but he played an influential role in the careers of Tommy Ryan (welterweight champion, 1884–98; middleweight champion, 1898–1906) and Noah Brusso (heavyweight champion, 1906–08). Brusso fought under the name "Tommy Burns" in honor of his friend and sponsor.
Burns was married in 1894 to Katherine Walsh. They had two sons, James Anthony born 1899, and Francis Leo born 1905. James Anthony served in the Michigan Senate and on the Wayne County Board of Commissioners. Francis Leo became a priest and helped found Detroit Catholic Central high School.
In March 1900, Burns purchased the Detroit Tigers in conjunction with George Stallings for $12,000. He led the team to major league status in 1902 as an inaugural member of the American League and served as the team's president. The team played its home games at Bennett Park except on Sundays, when Detroit's blue laws forbade the team from playing there; Burns Park in Springwells served as the Tigers' Sunday home ball park. The 1901 Tigers had a 74-61 win-loss record. Burns sold his interest in the team to Samuel F. Angus in 1902 for $20,000.