Freycinet may refer to:
- People
- Charles de Freycinet (1828–1923), French prime minister
- Louis de Freycinet (1779–1842), French navigator
- Places
- Cape Freycinet, Western Australia
- Henri Freycinet Harbour, Western Australia
- Freycinet Island, Western Australia
- Freycinet National Park, Tasmania
- Freycinet Peninsula, Tasmania
- Other
- Freycinet gauge, standard governing the dimensions of the locks of some canals.