| Christopher Daniel Sullivan | |
| Image Name: | Christopher D. Sullivan.jpg |
| State1: | New York |
| District1: | 13th |
| Party: | Democratic |
| Term Start1: | March 4, 1917 |
| Term End1: | January 3, 1941 |
| Preceded1: | George W. Loft |
| Succeeded1: | Louis J. Capozzoli |
| State Senate2: | New York |
| District2: | 11th |
| Term Start2: | January 1, 1909 |
| Term End2: | November 7, 1916 |
| Preceded2: | Dominick F. Mullaney |
| Succeeded2: | Bernard Downing |
| State Senate3: | New York |
| District3: | 13th |
| Term Start3: | January 1, 1907 |
| Term End3: | December 31, 1908 |
| Preceded3: | Bernard F. Martin |
| Succeeded3: | William J. A. Caffrey |
| Birth Date: | 14 July 1870 |
| Birth Place: | New York City |
| Death Place: | New York City |
| Spouse: | Helen Sullivan (1875–1907) |
| Children: | Christopher Sullivan Jr (1897), Isabel Sullivan (1899), Helen Sullivan (1902), Estelle Sullivan (1903), Vincent Sullivan (1905–1910) |
| Occupation: | Real Estate, State Senator, United States Congressman |
| Residence: | Manhattan, New York |
Christopher Daniel Sullivan (July 14, 1870 – August 3, 1942) was an American politician from New York who served twelve terms as a United States Congressman from 1917 to 1941.
Born in New York City, he attended the public schools, St. James Parochial School, and St. Mary's Academy. Then he engaged in the real-estate business, and entered politics, joining Tammany Hall.
He was a member of the New York State Senate from 1907 to 1916, sitting in the 130th through 139th New York State Legislatures.
In 1916, Sullivan was elected as a Democrat to the 65th United States Congress. He was subsequently re-elected 11 times, serving through the 76th Congress. In all, he held office from March 4, 1917, to January 3, 1941.
While in the House he was Chairman of the Committee on Expenditures in the Department of Labor (65th Congress).
Sullivan did not seek re-election in 1940.
He resided in New York City until his death in 1942. He was interred at Calvary Cemetery in Woodside, New York.
State Senator Charles D. Perry (1907–1964) was his nephew. Charles was the son of Christopher's half-brother Henry Charles Perry, known as Harry Perry. (Harry was also involved in New York politics.)