Colonel William A. Phillips

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.

Opinion polling

List of polls

Poll source	Date	1st	2nd	3rd	Other
Primary results	May 17, 2016	Donald Trump 64.51%	Ted Cruz 16.50%	John Kasich 15.83%
DHM Research/Oregon Public Broadcasting/Fox 12^[1] Margin of error: ± 5.7% Sample size: 324	May 6–9, 2016	Donald Trump 45%	Ted Cruz 14%	John Kasich 14%	Undecided 19%, Wouldn't Vote 7%
Hoffman Research^[2] Margin of error: ± 4.16% Sample size: 555	April 26–27, 2016	Donald Trump 43%	Ted Cruz 26%	John Kasich 17%	Undecided 13%
DHM Research Archived 2015-09-14 at the Wayback Machine Margin of error: ± 7.7% Sample size: 169	July 22–27, 2015	Donald Trump 18%	Scott Walker 12%	Jeb Bush 11%	Ted Cruz 10%, Ben Carson 9%, Rand Paul 6%, Mike Huckabee 6%, John Kasich 4%, Marco Rubio 3%, Chris Christie 2%, Carly Fiorina 2%, Rick Santorum 2%, Bobby Jindal 1%, Rick Perry 1%, Lindsey Graham 0%, Jim Gilmore 0%, George Pataki 0%, Other 2%, DK 12%
Public Policy Polling Margin of error: ± 5.1% Sample size: 375	May 22–27, 2014	Mike Huckabee 21%	Ted Cruz 16%	Jeb Bush 15%	Rand Paul 15%, Chris Christie 12%, Marco Rubio 4%, Paul Ryan 3%, Scott Walker 3%, Rick Santorum 2%, Someone else/Not sure 10%

Oregon Republican primary, May 17, 2016
Candidate	Votes	Percentage	Actual delegate count
Candidate	Votes	Percentage	Bound	Unbound	Total
Donald Trump	252,748	64.16%	18	0	18
Ted Cruz (withdrawn)	65,513	16.63%	5	0	5
John Kasich (withdrawn)	62,248	15.80%	5	0	5
Write-in	13,411	3.40%	0	0	0
Unprojected delegates:			0	0	0
Total:	393,920	100.00%	28	0	28
Source: The Green Papers

^ "Primary Election Survey Republicans" (PDF). DHM Research. Archived from the original (PDF) on May 19, 2016. Retrieved May 12, 2016.
^ "OREGON STATEWIDE TRACKING SURVEY" (PDF). Hoffman Research. Archived from the original (PDF) on May 13, 2016. Retrieved April 29, 2016.

2016 Republican Party presidential primaries
Candidates Endorsements Debates and forums Polling Results Convention
February	Iowa New Hampshire South Carolina Nevada
Super Tuesday	Alabama Alaska Arkansas Colorado Georgia Massachusetts Minnesota North Dakota Oklahoma Tennessee Texas Vermont Virginia Wyoming
March	Kansas Kentucky Louisiana Maine Puerto Rico Hawaii Idaho Michigan Mississippi U.S. Virgin Islands District of Columbia Guam Florida Illinois Missouri Northern Marianas North Carolina Ohio American Samoa Arizona Utah
April	Wisconsin New York Connecticut Delaware Maryland Pennsylvania Rhode Island
May	Indiana Nebraska West Virginia Oregon Washington
June	California Montana New Jersey New Mexico South Dakota