Io name meaning

Last Name
in the U.S.
in 2010

Meaning and Origin

What does the name Io mean? Keep reading to find the user submitted meanings, dictionary definitions, and more.

Origin and Meaning of Io

User Submitted Origins


User Submitted Meanings

  1. A submission from Virginia, U.S. says the name Io means "Jupiter's moon" and is of Greek origin.
  2. According to a user from Minnesota, U.S., the name Io is of Greek origin and means "Moon of Jupiter, moon named after greek mythology where Zeus (aka Jupiter) fell in love with a princess (Io)".
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International Interest
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Webster's Unabridged Dictionary
noun I"o
An exclamation of joy or triumph; -- often interjectional.

Etymology: L.; cf. Gr. "iw`

noun I"o
  1. In Greek mythology, the beautiful daughter of Inachus, king of Argos, Greece, who was changed by Hera (Juno), in a fit of jealousy, into a white heifer, and placed under the watch of Argus of the hundred eyes. When Argus was killed by Hermes at the command of Zeus, the heifer was maddened by a terrible gadfly sent by Hera, and wandered about until she arrived in Egypt. There she recovered her original shape, and bore Epaphus to Zeus. Epaphus became the ancestor of Ægyptus, Damaus, Cepheus, and Phineus. She was identified by the Egyptians with Isis. According to another legend, Io was carried off by Phoenician traders who landed in Argos. The myth is generally explained to be Aah or the moon wandering in the starry skies, symbolized by the hundred-eyed Argus; her transformation into a horned heifer representing the crescent moon."Greek mythology, too, knew her [Astarte] as Iô and Europa, and she was fitly symbolised by the cow whose horns resemble the supine lunar crescent as seen in the south." [Seyce (Anc. Empires, p. 195).]

Etymology: Gr. 'Iw`

Other Dictionary Sources
  1. The closest of Jupiter's moons; has active volcanoes
  2. (Greek mythology) a maiden seduced by Zeus; when Hera was about to discover them together Zeus turned her into a white heifer

Modern Latin, from Ancient Greek ἰώ (iṓ, “Io”).

  1. A type of moth, the io moth.

From Latin; compare Ancient Greek ἰώ (iṓ, “oh!”).

    io was also found in the following language(s): Aromanian, Chuukese, Dutch, Esperanto, Interlingua, Istro-Romanian, Italian, Japanese, Latin, Neapolitan, and Old High German

    Notable Persons Named Io

    Notable Persons Named Io

    iO Tillett Wright

    iO Tillett Wright is an artist, director, photographer, writer, film maker, activist, and actor/actress. iO was born on September 2nd, 1985. iO is also known as iO.

    Io Shirai

    Io was born on May 8th, 1990 in Kantō region. Io is also known as Odate, Masami; Kasai, and Biba; Oyuki.

    Io Sakisaka


    Notable Persons With the Last Name Io

    Notable Persons With the Last Name Io

    Lau Si Io

    Lau Si Io is a Secretary for Transportand Public Works of Macau, Secretariat for Transport, and Public Works (Macau). Lau was born in Portuguese Macau.


    Fun Facts about the name Io

  1. How Popular is the name Io? Io is the 32,269th most popular name of all time.
  2. How many people with the first name Io have been born in the United States? From 1880 to 2019, the Social Security Administration has recorded 144 babies born with the first name Io in the United States. That's more than enough people named Io to occupy the territory of Pitcairn Islands (United Kingdom) with an estimated population of 66 (as of July 1, 2008).
  3. What year were 5 or more babies first named Io? The name was first given to 5 or more babies in the year 2000 when it was given as a first name to 5 new born babies.
  4. When was Io first recorded in the United States? The oldest recorded birth by the Social Security Administration for the first name Io is Friday, July 14th, 1876.
  5. What year had the most people named Io born? The highest recorded use of the first name Io was in 2016 with a total of 16 babies.
  6. Random Io Factoid: According to the 2013 U.S. Social Security Administration data, the first name Io is not a popular baby girl's name in California. Imagine that, only 5 babies in California have the same name in 2013.
  7. Weird things about the name Io: The name spelled backwards is Oi. A random rearrangement of the letters in the name (anagram) will give Oi. How do you pronounce that?
  8. Io name meaning

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