2018 United States House of Representatives elections in Hawaii

The 2018 United States House of Representatives elections in Hawaii were held on Tuesday, November 6, 2018, to elect the two U.S. representatives from the U.S. state of Hawaii; one from each of the state's two congressional districts. Primaries were held on August 11, 2018. The elections and primaries coincided with the elections and primaries of other federal and state offices.

With the 2018 election results, the Democratic Party easily retained both House seats and retained unitary control over the entirety of Hawaii's Congressional (both House and Senate) delegation.

Overview
Results of the 2018 United States House of Representatives elections in Hawaii by district:

District 1
The incumbent is Democrat Colleen Hanabusa, who has represented the district since 2017 and from 2011 to 2015. Hanabusa was elected with 68% of the vote in 2016. She retired to seek the 2018 Democratic nomination for Governor of Hawaii.

Democratic primary

 * Ed Case, former U.S. Representative
 * Doug Chin, Lieutenant Governor of Hawaii
 * Beth Fukumoto, state representative, former Republican Minority Leader
 * Kaniela Ing, state representative
 * Donna Mercado Kim, state senator
 * Ernie Martin, Honolulu City Councilman
 * Sam Puletasi, former federal agent

Polling
{| class=wikitable ! Poll source ! Date(s) administered ! Sample size ! Margin of error ! style="width:75px;"|Ed Case ! style="width:75px;"|Doug Chin ! style="width:75px;"|Beth Fukumoto ! style="width:75px;"|Kaniela Ing ! style="width:75px;"|Ernie Martin ! style="width:75px;"|Donna Mercado Kim ! style="width:75px;"|Undecided
 * - valign= bottom
 * Merriman River Group
 * align=center| July 19–21, 2018
 * align=center| 403
 * align=center| ± 4.9%
 * align=center| 34%
 * align=center| 19%
 * align=center| 5%
 * align=center| 6%
 * align=center| 3%
 * align=center| 15%
 * align=center| 18%
 * Mason-Dixon
 * align=center| July 6–11, 2018
 * align=center| 244
 * align=center| ± 6.4%
 * align=center| 36%
 * align=center| 27%
 * align=center| 1%
 * align=center| 6%
 * align=center| 2%
 * align=center| 14%
 * align=center| 14%
 * Merriman River Group
 * align=center| May 3–5, 2018
 * align=center| 321
 * align=center| ± 5.5%
 * align=center| –
 * align=center| 19%
 * align=center| 11%
 * align=center| 8%
 * align=center| 4%
 * align=center| 26%
 * align=center| 32%
 * align=center| 4%
 * align=center| 26%
 * align=center| 32%

Republican primary

 * Campbell Cavasso, former state representative, and 2004, 2010, and 2014 Republican nominee for U.S. Senate
 * Raymond Vinole, small business owner

District 2
The incumbent is Democrat Tulsi Gabbard, who has represented the district since 2013. She was re-elected with 76% of the vote in 2016.

Democratic primary

 * Tulsi Gabbard, incumbent
 * Sherry Campagna
 * Anthony Tony Austin

Polling
{| class=wikitable ! Poll source ! Date(s) administered ! Sample size ! Margin of error ! style="width:75px;"|Sherry Campagna ! style="width:75px;"|Tulsi Gabbard ! style="width:75px;"|Undecided
 * - valign= bottom
 * Merriman River Group
 * align=center| July 19–21, 2018
 * align=center| 468
 * align=center| ± 4.5%
 * align=center| 16%
 * align=center| 69%
 * align=center| 15%
 * align=center| 15%

Primary results
[[File:2018 HI-02 Democratic primary.svg|thumb|200px|2018 Hawaii's 2nd congressional district Democratic primary results by county Map legend

{{legend|#214478|Gabbard—80–90%}}

{{legend|#2c5aa0|Gabbard—70–80%}}

{{legend|#f2f2f2|No data}} ]]

Republican primary

 * Brian Evans, singer, Democratic candidate for senator in 2004 and 2014

Results
[[File:2018 HI-02 election.svg|thumb|200px|2018 Hawaii's 2nd congressional district results by county Map legend

{{legend|#214478|Gabbard—80–90%}}

{{legend|#2c5aa0|Gabbard—70–80%}}

{{legend|#f2f2f2|No data}} ]]