| Election Name: | 2016 Oregon Republican presidential primary |
| Country: | Oregon |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2012 United States presidential election in Oregon#Republican primary |
| Previous Year: | 2012 |
| Next Election: | 2020 Oregon Republican presidential primary |
| Next Year: | 2020 |
| Candidate1: | Donald Trump |
| Color1: | 283681 |
| Home State1: | New York |
| Delegate Count1: | 18 |
| Popular Vote1: | 252,748 |
| Percentage1: | 64.16% |
| Candidate2: | Ted Cruz (withdrawn) |
| Color2: | DAA520 |
| Home State2: | Texas |
| Delegate Count2: | 5 |
| Popular Vote2: | 65,513 |
| Percentage2: | 16.63% |
| Candidate3: | John Kasich (withdrawn) |
| Color3: | 29AB87 |
| Home State3: | Ohio |
| Delegate Count3: | 5 |
| Popular Vote3: | 62,248 |
| Percentage3: | 15.80% |
| Map Size: | 300px |
| Votes For Election: | 28 pledged delegates to the Republican National Convention |
| Outgoing Members: | WV |
| Elected Members: | WA |
The 2016 Oregon Republican presidential primary was held on May 17 in the U.S. state of Oregon as one of the Republican Party's primaries ahead of the 2016 presidential election.
On the same day, the Democratic Party held their Oregon primary and their Kentucky primary, while the Republican Party did not hold any other primaries on that day.
Oregon has always voted for the nominee of the Republican Party in every statewide primary since 1944, except in 1964.
See also: Statewide opinion polling for the 2016 Republican Party presidential primaries.
See also: Results of the 2016 Republican Party presidential primaries.