Portland International Jetport (IATA: PWM, ICAO: KPWM, FAA LID: PWM) is a public airport two miles (3 km) west of downtown Portland, Maine, United States. It is owned and operated by the City of Portland. A portion of the Jetport's property, including the main runway, is located within the neighboring city of South Portland. PWM covers 726 acres (293 ha) of land.

The airport is the busiest in the state. In 2018, the jetport handled more than two million passengers for the first time, breaking the previous record of 1.86 million set in 2017.

The Jetport has benefited from service by low-cost carriers such as Southwest Airlines and JetBlue, as well as Portland's increased popularity as a tourist destination. A survey conducted in June 2011 found PWM to be the most affordable airport in the region, and the third most affordable in New England.

In October 2011, PWM completed a $75 million renovation and expansion of its terminal to allow more airline service and more amenities for passengers.

In 2020, PWM received $4.5 million in federal funds to construct a 1,200 ft-long (370 m) taxiway connecting runways.