Champoeg Creek is a tributary, roughly 6 miles (9.7 km) long, of the Willamette River in the U.S. state of Oregon.

The creek is formed by the confluence of its two forks in the French Prairie region of the Willamette Valley and flows generally northeast to meet the Willamette 45 miles (72 km) from the river's confluence with the Columbia River.

[3][4] The name "Champoeg" comes from the Kalapuyan word [čʰámpuik], which might be an abbreviation of [čʰa-čʰíma-púičuk], referring to the edible root [púičuk], or yampa.

It passes under McKay Road Northeast and Champoeg Road Northeast before receiving Case Creek from the right and Mission Creek from the left in Champoeg State Heritage Area.

Less than 1 mile (1.6 km) later, it enters the Willamette River 45 miles (72 km) from the larger stream's mouth on the Columbia River.