In American politics, a conservative Democrat is a member of the Democratic Party with more conservative views than most Democrats. Traditionally, conservative Democrats have been elected to office from the Southern states, rural areas, and the Great Plains. In 2019, the Pew Research Center found that 14% of Democratic and Democratic-leaning registered voters identify as conservative or very conservative, 38% identify as moderate, and 47% identify as liberal or very liberal.

Before 1964, the Democratic Party and Republican Party each had influential liberal, moderate, and conservative wings. During this period, conservative Democrats formed the Democratic half of the conservative coalition. After 1964, the Democratic Party retained its conservative wing through the 1970s with the help of urban machine politics. In the 21st century, the number of conservative Democrats decreased as the party moved leftward.

The Blue Dog Coalition represents centrist and conservative Democrats in the U.S. House of Representatives.

The Solid South describes the reliable electoral support of the U.S. Southern states for Democratic Party candidates for almost a century after the Reconstruction era. Except for 1928, when Catholic candidate Al Smith ran on the Democratic ticket, Democrats won heavily in the South in every presidential election from 1876 until 1964 (and even in 1928, the divided South provided most of Smith's electoral votes). The Democratic dominance originated in many Southerners' animosity towards the Republican Party's role in the Civil War and Reconstruction.

In 1896, William Jennings Bryan won the Democratic Party nomination by promoting silver over gold, and denouncing the banking system. He had a strong base in the South and Plains states, as well as silver mining centers in the Rocky Mountain states. He was weak in urban areas and immigrant communities which opposed prohibition. He also won the Populist nomination. Conservative Democrats opposed him, especially in the Northeast where "Gold Democrats" were most active. "Gold Democrats" were supporters of Grover Cleveland, the hero of conservative Democrats. They formed the National Democratic Party and nominated John Palmer, former governor of Illinois, for president and Simon Bolivar Buckner, former governor of Kentucky, for vice-president. They also nominated a few other candidates, including William Campbell Preston Breckinridge for Congress in Kentucky, but they won no elections. Bryan and people he supported (especially Woodrow Wilson) usually dominated the party. However the conservatives did nominate their candidate in 1904, Alton B. Parker.

The 1932 election brought about a major realignment in political party affiliation. Franklin D. Roosevelt forged a coalition of labor unions, liberals, Catholics, African Americans, and southern whites. Roosevelt's program for alleviating the Great Depression, collectively known as the New Deal, emphasized only economic issues, and thus was compatible with the views of those who supported the New Deal programs but were otherwise conservative. This included the Southern Democrats, who were an important part of FDR's New Deal coalition. A number of chairmanships were also held by conservative Democrats during the New Deal years.

Conservative Democrats came to oppose the New Deal, especially after 1936. They included Senator Harry F. Byrd and his powerful state organization in Virginia, Senator Rush Holt Sr., Senator Josiah Bailey, and Representative Samuel B. Pettengill. The American Liberty League was formed in 1934, to oppose the New Deal. It was made up of wealthy businessmen and conservative Democrats including former Congressman Jouett Shouse of Kansas, former Congressman from West Virginia and 1924 Democratic presidential candidate, John W. Davis, and former governor of New York and 1928 Democratic presidential candidate Al Smith. In 1936, former U.S. Assistant Secretary of War, Henry Skillman Breckinridge ran against Roosevelt for the Democratic nomination for president. John Nance Garner, of Texas, 32nd Vice President of the United States under Roosevelt, a conservative Southerner, broke with Roosevelt in 1937 and ran against him for the Democratic nomination for president in 1940, but lost. By 1938 conservative Democrats in Congress—chiefly from the South—formed a coalition with Republicans that largely blocked liberal domestic policy until the 1960s.

However, most of the conservative Southern Democrats supported the foreign policy of Roosevelt and Truman.