Portland Airport may refer to:
- Portland Airport (Victoria) in Portland, Victoria, Australia (IATA: PTJ)
- Portland International Airport in Portland, Oregon, United States (FAA: PDX)
- Portland International Jetport in Portland, Maine, United States (FAA: PWM)
- Portland Municipal Airport (Indiana) in Portland, Indiana, United States (FAA: PLD)
- Portland Municipal Airport (Tennessee) in Portland, Tennessee, United States (FAA: 1M5)