This list of museums in Oregon encompasses museums defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing.
Lists of Oregon institutions which are not museums are noted in the "See also" section, below.
Antique Powerland Museums, according to its website, "encompasses 14 additional museums and heritage organizations operating in partnership", which are not listed in the sortable table above (except as noted):
The region designations used in the table above follow the Oregon Museums Association regions (the state tourism authority uses slightly different regions):[90] Museums are sometimes known by more than one name, and they sometimes change their names.
Here are some known variations of the names of museums in the above list (which uses each museum's most widely known name):