a free and open-source Unix-like operating system forked from FreeBSD 4.8.

The Cessna A-37 Dragonfly, or Super Tweet, is a light attack aircraft designed and produced by the American aircraft manufacturer Cessna.

the second book in the Outlander series of novels by Diana Gabaldon.

The Westland WS-51 Dragonfly helicopter was built by Westland Aircraft and was an Anglicised licence-built version of the American Sikorsky S-51.

The Boeing X-50A Dragonfly, formerly known as the Canard Rotor/Wing Demonstrator, was a VTOL rotor wing experimental unmanned aerial vehicle that was developed by Boeing and DARPA to demonstrate the principle that a helicopter's rotor could be stopped in flight and act as a fixed wing, enabling it to transition between fixed-wing and rotary-wing flight.

The scarlet dragonfly (Crocothemis erythraea) is a species of dragonfly in the family Libellulidae.

an American amateur-built aircraft, designed by Bob Walters Bill Cox : "...Bob Walters, an ex-Navy fighter pilot with a penchant for designing his own airplanes.

The Holy Family with the Dragonfly, also known as The Holy Family with the Mayfly, The Holy Family with the Locust, and The Holy Family with the Butterfly is an engraving by the German artist Albrecht Dürer from approximately 1495.