Ena

• École nationale d'administration, French Grande école, for civil service
• Education Networks of America, Internet service provider

• English National Association, a former political party
• Ensame Nacionalista Astur, a defunct political party in Spain
• Ethiopian News Agency, of the Government of Ethiopia
• Étoile Nord-Africaine (The North African Star), a former Algerian nationalist organization

• Ena von Baer (born 1974), Chilean journalist, political scientist and senator
• Ena Baga (1906–2004), British pianist and theatre organist
• Ena Begović (1960–2000), Croatian actress
• Ena Sandra Causevic (born 1989), Danish model
• Ena Cremona (1936–2024), Maltese judge at the European Union General Court
• Ena de Silva (1922–2015), Sri Lankan artist
• Ena Fitzgerald (1889-1962), English novelist, poet
• Ena Fujita (born 1990), Japanese musician and model
• Ena Gregory (1906–1993), Australian motion picture actress
• Ena Guevara (born 1959), Peruvian long-distance runner
• Ena Kadic (1989–2015), Bosnian-Austrian model and beauty pageant titleholder
• Ena Murray (1936–2015), Afrikaans writer
• Ena Noël (1910–2003), Australian dancer, teacher, librarian and advocate for children's literature
• Ena Lamont Stewart (1912–2006), Scottish playwright
• Ena Lucía Portela (born 1972), Cuban writer
• Ena Saha (born 1991), Indian actress
• Ena Shibahara (born 1998), American tennis player
• Ena Stockley (1906–1989), New Zealand swimmer
• Ena Swansea (born 1966), American artist
• Ena Thomas (1935–2020), Welsh television chef
• Ena Twigg (1847–1920), British psychic medium
• Paul Kostabi (born 1962), American artist, musician, and producer
• Victoria Eugenie of Battenberg (1887–1969), Queen of Spain

• Justin Ena (born 1977), American football player
• Rav Ena (died 540), Jewish Savora sage

• Ena Sharples, from the British soap opera Coronation Street
• Ena Saitō, a character from the manga series Laid-Back Camp
• Ena Shinonome, from the Japanese video game Hatsune Miku: Colorful Stage!
• Aunt Ena, from the book Bambi, a Life in the Woods
• Ena, Aeon of Order in Honkai: Star Rail
• ENA, in the video game ENA: Dream BBQ

• Ena District, Gifu (ceased 2005), a former district in Japan
• Ena, Gifu (formed 2004), a city in Japan
• Ena, Gujarat, a village in India
• Ena, Pañas de Riglos, Aragon, Spain
• Ena Lake, Ontario, Canada
• Ena Lake (Saskatchewan), Canada
• Mount Ena, in Japan

• Ena (gastropod), a genus of land snails
• Extractable nuclear antigen
• Energetic neutral atom
• European Nucleotide Archive

• Ena Railway, in Japan; defunct
• Ena Station, a railway station in Ena, Japan
• Kenai Municipal Airport in Alaska, United States
• SB Ena, a 1906 wooden Thames sailing barge

• ST Ena, a Greek tugboat
• SY Ena, an Australian steam yacht

• Ena (album), a 2006 album by Greek artist Peggy Zina
• ENA Channel, a Greek television channel
• ENA (South Korean TV channel), a South Korean commercial general entertainment channel
• Apali language
• Emergency Nurses Association
• Energy Networks Australia, a trade association
• Energy Networks Association (United Kingdom), a trade association
• European NAvigator, an educational website
• Experimental Negotiation Agreement (1974–1984), a United Steelworkers agreement with U.S. Steel and other steelmakers

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