Oregon Brewers Festival (OBF) is a four-day craft beer festival held annually from 1988 to 2019 and 2022 at the Tom McCall Waterfront Park in downtown Portland, Oregon, except in 2020-21 when the COVID-19 pandemic and 2023 when low attendance and hot weather from last year caused it to be cancelled.

[1] OBF has become the most popular outdoor beer festival in North America, based on attendance.

Founder of Portland Brewing Co, Art Larrance,[6] launched the Oregon Brewers Festival in July 1988, after visiting Oktoberfest in Munich and wanting to create a similar atmosphere and experience.

[11] The 2011 Oregon Brewers Festival featured 85 craft beers from 14 states; it attracted 80,000 people over four days.

[12] In 2013, OBF added a fifth day, moving the opening to Wednesday; they also replaced the annual plastic mug, which had been used since the festival's beginning, with a tasting glass, which for 2013 costs $7.