X-55 is the Lockheed Martin X-55 aircraft.
X55, X.55, X-55, or variation may also refer to:
X55
), Eustis, Florida, US; see
List of airports in FloridaX-55 is the Lockheed Martin X-55 aircraft.
X55, X.55, X-55, or variation may also refer to:
X55
), Eustis, Florida, US; see
List of airports in Florida