2008 United States presidential election in Oklahoma

The 2008 United States presidential election in Oklahoma took place on November 4, 2008, and was part of the 2008 United States presidential election. Voters chose seven representatives, or electors to the Electoral College, who voted for president and vice president.

Oklahoma was won by Republican nominee John McCain with a 31.3% margin of victory. Prior to the election, all 17 news organizations considered this a state McCain would win, or otherwise considered as a safe red state. A strongly conservative state located in the Bible Belt where evangelical Christianity plays a large role, Oklahoma has trended heavily Republican in recent years. Having voted for the Republican presidential nominee in every election since 1968, Oklahoma once again showcased its status as a Republican stronghold in 2008 with Republican John McCain capturing 65.65% of the vote. It was also the only state where McCain won every county and was even one of the 5 states along with Louisiana, Arkansas, Tennessee, and West Virginia in which McCain outperformed Bush's margin of victory from 4 years earlier, albeit slightly.

This was also only the second election since its statehood in which Oklahoma supported a different candidate than Virginia, with 1920 being the first. However, this has happened in all elections since, as Oklahoma has voted consistently Republican while Virginia has voted consistently Democratic.