1904 United States presidential election in Mississippi

The 1904 United States presidential election in Mississippi took place on November 8, 1904. All contemporary 45 states were part of the 1904 United States presidential election. Voters chose ten electors to the Electoral College, which selected the president and vice president.

Mississippi was won by the Democratic nominees, Chief Judge Alton B. Parker of New York and his running mate Henry G. Davis of West Virginia. They defeated the Republican nominees, incumbent President Theodore Roosevelt of New York and his running mate Charles W. Fairbanks of Indiana. Parker won the state by a landslide margin of 85.48%.

With 91.07% of the popular vote, Mississippi would prove to be Parker's second strongest state in the 1904 presidential election only after South Carolina.