Arethusa

Arethusa may refer to:

Mythology

Arethusa (mythology), a nereid nymph who became a fountain
- Arethusa (Greek myth) several other figures also called Arethusa
Arethusa, one of the Hesperides nymphs

Arethusa (Mygdonia), an ancient city in Mygdonia of ancient Macedonia
Arethusa, ancient name of Al-Rastan, Syria
Arethusa (see), a titular see of Syria near Apamea
Arethousa, a municipal unit in the Thessaloniki regional unit, Greece
Ikaria
Arethusa Falls, one of the highest waterfalls in New Hampshire, USA
Antipatris, refounded in 64–63 BC by Pompey as Arethusa
Fountain of Arethusa, a fountain in Ortygia, Sicily, named from the above-mentioned nereid

Arethusa-class cruiser (disambiguation), two classes of Royal Navy cruiser
- Arethusa-class cruiser (1913), eight light cruisers built in 1912–1914 that served in World War I
- Arethusa-class cruiser (1934), four light cruisers built in 1934–1936 that served in World War II
Aréthuse-class submarine, a class of French submarine, in service 1958-1981
HMS Arethusa, nine ships of the Royal Navy, 1759 to 1991
- The Saucy Arethusa, a ballad about the action of 17 June 1778
Three training ships operated by the Shaftesbury Homes and Arethusa charity
- Arethusa, formerly HMS Arethusa (1849)
- Arethusa II,(1932–1975), formerly Peking (ship)
- Arethusa III, a much smaller ketch used as a training ship
French ship Aréthuse, various ships of the French Navy
USS Arethusa, three ships of the United States Navy 1864 to 1946

Arethusa (plant)
, a monospecific genus of orchids (Dragon's mouth, Arethusa bulbosa)
Arethusa De Montfort, 1808, a
foram
Arethusa Barrande, 1846, the occupied name for a trilobite, now renamed to Aulacopleura
Arethusa Oken, 1815, a synonym for the Portuguese man o' war
- Arethusa caravell Oken, 1815, a synonym for the Portuguese man o' war
95 Arethusa, an asteroid

Arethusa (journal), an academic journal
Arethusa, a poem by Percy Bysshe Shelley
Aretousa, a main character in the early 17th century romance Erotokritos
Arethusa, the writer of a letter in Propertius, 4.3 ('Arethusa sends these instructions to her lycotas,')
Shaftesbury Homes and Arethusa, one of the oldest charities dealing with children in the United Kingdom
- Arethusa, a residential activities centre in Upnor, Kent, run by Shaftesbury Homes and Arethusa