| Election Name: | 2008 Kentucky Republican presidential primary |
| Country: | Kentucky |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | Kentucky Republican primary, 2004 |
| Previous Year: | 2004 |
| Next Election: | Kentucky Republican primary, 2012 |
| Next Year: | 2012 |
| Candidate1: | John McCain |
| Party1: | Republican Party (United States) |
| Home State1: | Arizona |
| Delegate Count1: | 42 |
| Popular Vote1: | 142,918 |
| Percentage1: | 72.26% |
| Candidate2: | Mike Huckabee |
| Party2: | Republican Party (United States) |
| Home State2: | Arkansas |
| Delegate Count2: | 0 |
| Popular Vote2: | 16,388 |
| Percentage2: | 8.29% |
| Candidate4: | Ron Paul |
| Party4: | Republican Party (United States) |
| Home State4: | Texas |
| Delegate Count4: | 0 |
| Popular Vote4: | 13,427 |
| Percentage4: | 6.79% |
| Candidate5: | Mitt Romney |
| Party5: | Republican Party (United States) |
| Home State5: | Massachusetts |
| Delegate Count5: | 0 |
| Popular Vote5: | 9,206 |
| Percentage5: | 4.65% |
The 2008 Kentucky Republican presidential primary took place on May 20, 2008. The only Republican candidates that were still in the race were Senator John McCain and Congressman Ron Paul. McCain was the presumptive Republican nominee, having already won enough delegates to secure his eventual nomination. McCain won the primary.
| Candidate | Votes | Percentage | Delegates | |
|---|---|---|---|---|
| 142,918 | 72.26% | 42 | ||
| Mike Huckabee | 16,388 | 8.29% | 0 | |
| 13,427 | 6.79% | 0 | ||
| Mitt Romney | 9,206 | 4.65% | 0 | |
| Rudy Giuliani | 3,055 | 1.54% | 0 | |
| Alan Keyes | 2,044 | 1.03% | 0 | |
| Uncommitted | 10,755 | 5.44% | 0 | |
| Total | 197,793 | 100% | 42 |
* Candidate dropped out of the race before the primary