Mercer County Airport may refer to:
- Mercer County Airport (Illinois) in Aledo, Illinois, United States (FAA: C00)
- Mercer County Airport (West Virginia) in Bluefield, West Virginia, United States (FAA: BLF)
- Mercer County Regional Airport in Hazen, North Dakota, United States (FAA: HZE)
- Trenton-Mercer Airport, formerly Mercer County Airport, in Trenton, New Jersey, United States (FAA: TTN)
| This disambiguation page lists articles about airports with the same or similar names.
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