Dion

• Dion (mythology), a king in Laconia and husband of Iphitea, the daughter of Prognaus
• Dion of Syracuse (408–354 BC), ancient Greek politician
• Dio of Alexandria, first century BC, ancient Greek philosopher
• Dion of Naples, an ancient Greek mathematician cited by Augustine of Hippo along with Adrastus of Cyzicus
• Dio Chrysostom, also known as Dion Chrysostomos (c. 40 – c. 115), a Greek orator, writer, philosopher and historian
• Cassius Dio, also known as Dion Kassios (c. AD 155 – 235), a Roman consul

• Dion Bakker (born 1981), Dutch Youtuber and artist
• Dion O'Banion (1892–1924) , American mobster
• Dion Boucicault (1820–1890), Irish actor and playwright
• Dion Boucicault Jr. (1859–1929), American actor and stage director
• Dion Dawkins (born 1994), American football player
• Dion DiMucci (born 1939), American singer/songwriter known professionally as "Dion"
• Dion Dublin (born 1969), English footballer and television presenter
• Dion Fortune (1890–1946), British occultist
• Dion Graham, American actor and narrator
• Dion Ignacio (born 1986), Filipino actor
• Dion Jenkins (born 1979), American singer-songwriter and producer called "Dion"
• Dion Lambert (born 1969), American football player
• Dion Lee (born 1985), Australian fashion designer
• Dion Lewis (born 1990), American football player
• Dion Lim, American new anchor and reporter
• Dion Myers (born 2002), Zimbabwean cricketer
• Dion Nash (born 1971), New Zealand cricketer
• Dion Nelin (born 1976), Danish carom billiards player
• Dion Phaneuf (born 1985), Canadian ice hockey player
• Dion Titheradge (1889–1934), Australian actor and playwright
• Dion Waiters (born 1991), American basketball player

• Celine Dion (born 1968), Canadian singer
• Colleen Dion (born 1964), American actress
• Josh Dion Band, American music group led by singer/drummer Josh Dion
• Olivier Dion (born 1991), Canadian pop singer
• Pascal Dion (born 1994), Canadian short track speed skater
• Stéphane Dion (born 1955), Canadian academic and politician

• Dion, Archaeological Park, the ancient site of the religious center of Macedonia
• Dion, Archaeological Museum, the finds of the ancient site are exhibited here
• Dion, Pieria, the great "sacred place" of the Ancient Macedonians, ancient city and archaeological site, and a modern town
• Dion (Chalcidice), a town of ancient Chalcidice
• Dion (Coele-Syria), a town of ancient Coele-Syria, in the Decapolis of the Roman Empire
• Dion (Crete), a town of ancient Crete
• Dion (Euboea), a town of ancient Euboea
• Dium (Pisidia) or Dion, a town of ancient Pisidia
• Dion (Thessaly), a town of ancient Thessaly
• Dion, part of the municipality of Beauraing, province of Namur, Belgium
• Dion Islands, Antarctica

• Dion (geometry), one-dimension polytope
• Dion (skipper), a genus of butterflies in the grass skippers family
• Mitsubishi Dion, a compact MPV produced by Mitsubishi Motors
• Dion (Transformers), a character from the Transformers franchise
• Dion Lesage, a character from the 2023 game Final Fantasy XVI
• Dion Blaster, a character in 1080° Snowboarding
• Dion (album), a 1968 album by Dion DiMucci

• Deon, given name
• Deion (disambiguation)
• Dio (disambiguation)
• Dione (disambiguation)
• Dionne (disambiguation)
• Dionne (name)
• Dionysius (disambiguation)

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