National Intelligencer
| National Intelligencer plaque at original location in Washington, DC | |
| Type | Thrice Weekly, later Daily newspaper | 
|---|---|
| Owner(s) | Samuel Harrison Smith | 
| Publisher | William Winston Seaton and Joseph Gales | 
| Founded | October 31, 1800 | 
| Ceased publication | January 10, 1870 | 
| Headquarters | Washington, D.C. | 
| Country | United States | 
| ISSN | 2474-4336 | 
| OCLC number | 9581153 | 
The National Intelligencer and Washington Advertiser was a newspaper published in Washington, D.C., from October 30, 1800 until 1870. It was the first newspaper published in the District, which was founded in 1790. It was originally a tri-weekly publication. It covered early debates of the United States Congress. The paper had a strong bias to Democratic-Republicans and Thomas Jefferson.