Freycinet may refer to:
People Charles de Freycinet (1828–1923), French prime minister Louis de Freycinet (1779–1842), French Navy officer Rose de Freycinet (1794-1832), diarist and wife of Louis.
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.