The Washington Senators can refer to:
- The Washington Senators (officially named the Washington Nationals during the 1905–1956 seasons), an American League baseball team based in Washington, D.C. from 1901 to 1960. The franchise then moved to Minneapolis-St. Paul and became, and still remains, the Minnesota Twins.
- The Washington Senators were also an American League baseball expansion team from 1961 to 1971. The franchise then moved to Dallas-Fort Worth and became, and still remains, the Texas Rangers.
Note: Because the original Senators' relocation to Minnesota and the expansion Senators' arrival occurred in the same year (1961), and both had the same name, it is a very common mistake to confuse the two franchises. The original Senators used dark blue as its primary color, with a big, loud "W" on its caps, while the expansion Senators used red, with a cursive, squiggly "W." The colors are still used by their successive teams (Minnesota and Texas), and have been adopted by the new Nationals for home (red) and road (blue) games.
19th Century baseball in Washington
- There were several professional baseball teams called the Washington Nationals, Washington Senators and Washington Statesmen in the 19th century.
- The National Association Washington Nationals played in 1873 and 1875
- The Union Association Washington Nationals played in 1884
- The American Association Washington Nationals played in 1884
- The American Association Washington Statesmen played in 1891 and 1894
- The National League Washington Statesmen played 1886–1889
- The National League Washington Senators played 1892–1899.