Troutdale Airport (IATA: TTD, ICAO: KTTD, FAA LID: TTD), also known as Troutdale-Portland Airport, is a corporate, general aviation, and flight-training airport serving the city of Troutdale, in Multnomah County, Oregon, United States. It is one of three airports in the Portland metropolitan area owned and operated by the Port of Portland. Troutdale Airport was established in 1920 as a private airfield, then purchased by the Port of Portland in 1942. It serves as a reliever airport for nearby Portland International Airport (PDX).

Located in North Troutdale, and east of Portland, and south of Troutdale Reynolds Industrial park. Northeast of Fairview and Wood Village, and East of Interlachen and North Gresham. The airport includes a Federal Aviation Administration contract control tower, one paved runway, hangars, fueling facilities, a helipad, and a small passenger terminal.