Electra, also spelt Elektra, was a daughter of Agamemnon and Clytemnestra in Greek mythology.

Electra or Elektra may also refer to:

• Electra (Pleiad), one of the Pleiades
• Electra, one of the Danaids, daughter of Danaus and Polyxo
• Electra (Oceanid), the wife of Thaumas and mother of Iris and the Harpies

• Electra (bryozoan), a genus of aquatic invertebrates
• Elektra (bug), a genus of insects in the tribe Mirini
• Electra (horse), a Thoroughbred racehorse

• Elektra: Assassin (1986), a comics miniseries dedicated to the Marvel character

• Electra (cat), in T.S. Eliot's Old Possum's Book of Practical Cats and in the musical Cats
• Elektra (character), a Marvel Comics character
• "Electra", Cathy's dog in the Cathy comic strip
• Electra the Electric Train, a character in Starlight Express
• Elektra King, in The World is not Enough
• Elektra (Tracy Beaker Returns character)
• Elektra, the princess of the Electric Eels from Sea Princesses

• Electra (1962 film), based on the Euripides play
• Electra, a 1996 Shannon Tweed film
• Elektra (2005 film), a film based on the Marvel character
• Elektra (2010 film), a Malayalam psychological drama film
• Electra (2023 film), a Czech short film by Daria Kashcheeva

• de:Electra (deutsche Band), a German prog-rock band
• Electra (band), an electronic musical band from the United Kingdom
• Electra (Israeli band), an Israeli rock'n'roll band
• Elektra (band), a pop rock band from Iceland

• Electra (album), by Alice Caymmi
• Electra (Arild Andersen album)
• Elektra (Suspekt album), 2011
• Elektra: The Album, the soundtrack to the 2005 film

• "Electra" (song), a 2009 song by heavy metal band Dio
• "Electra", a 2024 song by British art rock group Public Service Broadcasting

• Electra, by Johann Christian Friedrich Hæffner
• Elektra, by Mikis Theodorakis
• Elektra (opera), by Richard Strauss

• Electra (Euripides play)
• Electra (Sophocles play)
• Electra (Giraudoux play), 1930
• Electra (Wijesinha play), 1986
• Elektra, by Hugo von Hofmannsthal after Sophocles
• Elektra (started in 1949, first performed 1987), a play by Ezra Pound and Rudd Fleming
• Electra, a 1901 play written by Benito Pérez Galdós

• Electra (arts organisation), London-based non-profit arts organisation
• Electra (company), electricity and water company in Cape Verde
• Electra-Afikim, an Israeli bus company
• Electra Airways, airline
• Electra Bicycle Company, Vista, California-based bicycle brand/company
• Electra Guitars, brand of imported electric guitar of the 70s and 80s
• Electra Partners Europe, former name of European private equity firm Motion Equity Partners
• Elektra Berlin, a German association football club
• Elektra Records, U.S. record label
• Grupo Elektra, Mexican corporation
• Unbound Group, formerly Electra Private Equity, London-based listed investment trust

• Elektra (name) people and fictional characters with the given name or surname Elektra or variations thereof

• Mount Electra
• Electra Lake
• Electra Peak

• Electra (star), 17 Tauri
• 130 Elektra, an asteroid

• Electra, California
• Electra, Texas
• Electra, Queensland, a locality in the Bundaberg Region, Queensland, Australia

• Electra (San Diego), a condominium tower located in downtown San Diego
• Electra Building, Vancouver, a skyscraper
• Electra House, a building at 84 Moorgate, London, England
• Electra High School
• Electra Tower

• Electra, an iOS jailbreak app
• Electra (radio), telecommunications transceiver for Mars spacecraft
• Electra (satellite), a project for a communications satellite with all-electric propulsion
• Electra (teletext), a teletext service from the early 1980s to the early 1990s
• Electra, a satellite also known as Explorer-1 Prime
• Elektra, a navigation system developed from the Lorenz beam
• Elektra (layout engine)

• Lockheed L-188 Electra, an American turboprop airliner built by Lockheed
• Lockheed Model 10 Electra, a twin-engine, all-metal monoplane airliner from the 1930s
• Lockheed Model 12 Electra Junior, an eight-seat, six-passenger all-metal twin-engine transport aircraft of the late 1930s
• Lockheed Model 14 Super Electra, a civil cargo and passenger aircraft

• Buick Electra, full-size premium automobiles built by the Buick division of General Motors
• Harley-Davidson Electra Glide, a motorcycle in the FL model series since 1965

• Electra, an express electric locomotive of the type British Rail Class 77 built in 1953 for the Woodhead Line
• Electra, an early codename for the British Rail Class 91 electric locomotive
• Electra, a Great Western Railway Firefly class 2-2-2 locomotive

• HMS Electra, five ships
• USS Electra
• HS Elektra

• Electra (typeface), a serif typeface
• Electra complex, a psychiatric concept

• Elecktra, drag performer
• Électre, a 1782 opera by Jean-Baptiste Lemoyne on the myth of Electra