Aloha (/əˈloʊ.ə/, not /əˈloʊhɑː/) is a census-designated place and unincorporated community in Washington County, Oregon, United States.

Supposedly the last two letters were transposed by the Post Office during the application process.

The community attempted to incorporate in 1984, but the regional boundary commission halted the effort after determining the community could not provide the needed municipal services of a city.

[9] In 2012, a public library was opened in a space within a strip mall shopping center on Farmington Road at Kinnaman Road (previously anchored by Bales Thriftway until its closure in 2020).

[10] According to the United States Census Bureau, the CDP has a total area of 7.4 square miles (19 km2), all land.

16.9% of all households were made up of individuals, and 3.5% had someone living alone who was 65 years of age or older.

Aloha is served by Mountain View and Five Oaks middle schools and Aloha-Huber Park, Beaver Acres, Cooper Mountain, Errol Hassell, Hazeldale, and Kinnaman elementary schools.