North Bass Island Airport (FAA LID: 3X5) is a public airport located on North Bass Island, Ohio, United States.

It is owned and operated by the Put In Bay Township Port Authority.

[2] The airport received a $22,000 grant in 2021 to provide economic relief funds for costs related to operations, personnel, cleaning, sanitization, janitorial services, debt service payments, and combating the spread of pathogens.

[3] The airport received $113,000 from the Federal Aviation Administration in late 2023.

[7] For the 12-month period ending October 1, 2020, the airport had 1,716 aircraft operations, an average of 33 per week, including 58% general aviation and 42% air taxi.