Achilles is the name of a Greek mythological hero of the Trojan War.

Achilles or Achilleus may also refer to:

Science and medicine Achilles tendon, the posterior tendon of the leg 588 Achilles, the first Trojan asteroid to be discovered

Fiction Achilleis (trilogy), a trilogy of plays by Aeschylus Achilles (Marvel Comics), a member of the fictional group the Pantheon in the Marvel universe Olympian (character), whose second DC Comics incarnation is that of the Greek hero Achilles Achilles de Flandres, a villain in Orson Scott Card's Ender's Game novel series Achilles, Phoebus' horse in the animated film The Hunchback of Notre Dame

Music Achilles (opera), a 1733 ballad opera by John Gay Achilleus a 1886 secular oratorio by Max Bruch Achilles (band), an American hardcore band "Achilles", song by Jag Panzer from the album Casting the Stones, 2004

Places Achilles, Kansas, US, a ghost town Achilles, Virginia, US, an unincorporated community Achilles Peak, a mountain in New Zealand Achilles Point, a headland in Auckland, New Zealand

People Saints Nereus and Achilleus, 2nd century Christian saints and martyrs Achilles Tatius of Alexandria, 2nd century Greek writer Felix, Fortunatus, and Achilleus (died 212), Christian saints and martyrs Achilles or Achillius of Larissa (died 330), Christian saint Achilleus (Roman usurper), the ruler of Egypt for a short time in the late 3rd century AD Achilles (judge royal) (died after 1201), Hungarian noble Achilles Alferaki (1846–1919), Russian-Greek composer and mayor Achilleus Kewanuka (1869–1886), Ugandan Christian saint and martyr Frederick Achilles, Duke of Württemberg-Neuenstadt (1591–1631) Achilles Schucan, (died 1927) Swiss engineer Kullervo Achilles Manner (1880–1939), Finnish politician and journalist Theodore Achilles (1905–1986), American diplomat

Transport Achilles (automobile), a British automobile maker, 1903–1908 Achilles (1906–1912 motorcycle), a Czechoslovak motorcycle manufacturer Achilles (1873–1892), one of the ten South Devon Railway Buffalo class steam locomotives Achilles, one of the GWR 3031 Class locomotives that were built for and run on Great Western Railway between 1891 and 1915 was one of the first steamships that were fuel efficient enough to trade between the UK and China.

Military HMS Achilles, seven Royal Navy ships HMNZS Achilles, New Zealand Navy cruiser, 1932–1948 USS Achilles, two US Navy ships 17pdr SP M10C Achilles and 3in SP M10 Achilles, British variants of the M10, a World War II tank destroyer Chilean ship Aquiles, four ships of the Chilean Navy with the name in Spanish The "Achilles" drone battalion of Ukraine's 92nd Assault Brigade

Sport Achilles '29, a Dutch football club based in Groesbeek Achilles F.C., an English football club based in Ipswich Achilles Athletics Club, a club in Mombasa, Kenya, founded and run by coach Ray Batchelor in the 1950s Achilles Club, an English a track and field club Achilles International, an international non-profit organization which provides support to athletes with disabilities

See also Acanthurus achilles, commonly known as Achilles tang or Achilles surgeonfish, a species of tropical marine fish Achille (disambiguation) Achillea, the yarrows, a genus of flowering plants in the family Asteraceae Achilles' heel, a weakness or vulnerability Achilles number, a powerful number which is not a perfect power Achilleos, a surname Archicebus achilles, an extinct species of primate Borgå Akilles, a Finnish sports club based in Provoo Morpho achilles, the Achilles morpho, blue-banded morpho, or banded blue morpho, a species of Neotropical butterfly Phyllonorycter achilleus, a species of moth from the family Gracillariidae Z Achilles and Turbo Achilles, "Beyblades" from the anime and toyline Beyblade Burst Turbo