Bầu cử tổng thống Hoa Kỳ tại Michigan năm 2004

The 2004 United States presidential election in Michigan took place on November 2, 2004, and was part of the 2004 United States presidential election. Voters chose 17 representatives, or electors to the Electoral College, who voted for president and vice president.

Michigan was won by Democratic nominee John Kerry by a 3.4% margin of victory. Although no Republican carried this state in a presidential election since Bush's father George H. W. Bush in 1988, early polling showed the race was a toss-up, thus was considered as a possible target for the Republicans. Prior to the election, most news organizations considered this a toss-up, or a crucial swing state. Later polling favored Kerry, leading more than half of the news organizations to predict that Kerry would win the state, but the other less than half still considered it a swing state. Although the State of Michigan voted for the Democratic presidential nominee in six subsequent elections since 1992, the margins of victory had become smaller over the past elections. On election day, Kerry won the state with 51.23% of the vote, but won only 15 of the 83 counties in Michigan. Most of these 15 counties have the highest populations in the state. The biggest key to Kerry's victory was winning Wayne County with 69.39% of the vote.

Bush was the first president elected to two terms in office without carrying Michigan either time since Woodrow Wilson in 1912 and 1916, and is to date the only Republican presidential candidate to win the presidency without carrying the state at least once, as well as the most recent Republican to win without the state. Although Michigan was also not carried by the winner of the 2000 presidential race, the election also marked the first time since 1976 that Michigan voted against the winner of the national popular vote. Bush was the first Republican to win the national popular vote without Michigan since the 1968 presidential race. This also marked the first time since 1940 that an incumbent president won reelection without carrying Michigan.

As of 2024, this is the most recent election to date in which Michigan would vote for the losing candidate, thus the state is tied with Wisconsin and Pennsylvania for the longest bellwether streak in the nation. This was also only the fourth and most recent time since 1948 (after 2000, 1976, and 1968) that it would vote for the losing candidate.