Long Johns

October 10, 2026

John, Jean, Juan, Giovanni, Ivan, Jan, Hans, Seán, Ian and Evan are all the same name. Each descends from the Hebrew Yochanan, passed through Greek and Latin, and was then reshaped by the sound habits of every language that took it in.

Figure 1. The everyday form of John across Europe and the Near East. Forms from Behind the Name; boundaries from Natural Earth via world-atlas.

From Yochanan to Iohannes

The Hebrew name Yəhôḥānān, shortened to Yôḥānān, means “Yahweh is gracious.” Two New Testament saints, John the Baptist and John the Apostle, carried it to every Christian community. It was common first among Greek-speaking Christians and spread across Western Europe after the First Crusade.

Greek wrote it Iōannēs (Ἰωάννης), dropping the Hebrew ḥ, which Greek had no letter for, and adding the Greek masculine ending -ēs. Latin took it as Ioannes, later spelled Iohannes or Johannes. Latin had no separate letter J: I stood for both the vowel and the y sound, so the name began “yo-HAN-nes.” Those three syllables are the raw material for every European form.

How One Name Became Dozens

Each language changed the name's first sound and cut its three syllables down, each in its own way.

The first sound

German, Dutch, the Scandinavian and the Slavic languages kept the Latin y sound, so German Johann is said with a Y. In Old French it hardened to the j of “judge,” which the Normans brought to English John. French later softened it to the zh of Jean, and sixteenth-century Spanish pushed it back to the throaty h of Juan. Italian spells the hard j as Gi: Giovanni.

The trim

Front half: Jan, Jens, Middle English Jon.
Back half: Hannes, then Hans; Greek Giannis.
Squeezed whole: Jean, Juan, João, János.

Pet forms cut it further:

Name	Language	From
Honza	Czech	German Hans
Jussi	Finnish	Juhani or Juho
Jock	Scottish	the Scottish Jack
Ianto	Welsh	Ieuan
Gianni, Vanni, Nino	Italian	Giovanni, Giovannino
Vanya, Vanja, Vancho	Russian, South Slavic	Ivan
Iancu	Romanian	Ioan
Jancsi	Hungarian	János
Janusz	Polish	Jan

The eastern route

Slavic languages took the name from Greek through Church Slavonic, where Ioannŭ became Ivan.

The Celtic branches

Ireland: Eoin came straight from Latin before the Normans; Seán came later from Anglo-Norman Jehan, and Shane is its English spelling.
Scotland: Gaelic Iain, written Ian.
Wales: Ieuan, then Ifan, written Evan.

Owen is not related; it traces to Latin Eugenius.

Arabic

Arabic-speaking Christians use Yuhanna. The Quran calls John the Baptist Yaḥyā, “a name We have not given to anyone before” (19:7), and Islamic scholars read it as a separate name.

Further out

Armenian Hovhannes, Ethiopian Yohannes, Hawaiian Keoni, Māori Hone, Korean Yo-han. Feminine forms include Joan, Jane, Jean, Johanna, Juana, Giovanna, Ivana, Siobhan and Sinéad.

Figure 2. Every European form passes through Greek; the split by language family happens after Latin and Church Slavonic. Simplified: Seán entered Irish through Norman French.

Works Cited

19 sources

Bostock, Mike. world-atlas. Version 2, npm, www.npmjs.com/package/world-atlas. Natural Earth country boundaries, 1:50m.

Campbell, Mike. “Gianni.” Behind the Name, www.behindthename.com/name/gianni. Accessed 10 Oct. 2026.

---. “Ifan.” Behind the Name, www.behindthename.com/name/ifan. Accessed 9 Oct. 2026.

---. “Ivan.” Behind the Name, www.behindthename.com/name/ivan. Accessed 9 Oct. 2026.

---. “John.” Behind the Name, www.behindthename.com/name/john. Accessed 9 Oct. 2026.

“Hans (Given Name).” Wikipedia, Wikimedia Foundation, en.wikipedia.org/wiki/Hans_(given_name). Accessed 9 Oct. 2026.

Harper, Douglas. “Jack (n.).” Online Etymology Dictionary, www.etymonline.com/index.php?term=jack. Accessed 9 Oct. 2026.

---. “John.” Online Etymology Dictionary, www.etymonline.com/word/John. Accessed 9 Oct. 2026.

“Honza.” Wikipedia, Wikimedia Foundation, en.wikipedia.org/wiki/Honza. Accessed 10 Oct. 2026.

“Ian.” Wikipedia, Wikimedia Foundation, en.wikipedia.org/wiki/Ian. Accessed 9 Oct. 2026.

“J.” Wikipedia, Wikimedia Foundation, en.wikipedia.org/wiki/J. Accessed 9 Oct. 2026.

“Jack (Given Name).” Wikipedia, Wikimedia Foundation, en.wikipedia.org/wiki/Jack_(given_name). Accessed 9 Oct. 2026.

“Jock (Given Name).” Wikipedia, Wikimedia Foundation, en.wikipedia.org/wiki/Jock_(given_name). Accessed 10 Oct. 2026.

“John (Given Name).” Wikipedia, Wikimedia Foundation, en.wikipedia.org/wiki/John_(given_name). Accessed 9 Oct. 2026.

“John the Baptist in Islam.” Wikipedia, Wikimedia Foundation, en.wikipedia.org/wiki/John_the_Baptist_in_Islam. Accessed 9 Oct. 2026.

“Jussi.” Wikipedia, Wikimedia Foundation, en.wikipedia.org/wiki/Jussi. Accessed 10 Oct. 2026.

Nicholas, Nick. “Why Does the Pronunciation of the Letter ‘J’ Vary So Much Throughout Different Languages?” Hellenisteukontos, 6 Dec. 2015, hellenisteukontos.opoudjis.net/2015-12-06-why-does-the-pronunciation-of-the-letter-j-vary-so-much-throughout-different-languages/.

Ó Crualaoich, Conchubhar, and Aindí Mac Giolla Chomhghaill. “A Confusion of Johns (Part I).” Logainm.ie: Placenames Database of Ireland, www.logainm.ie/en/themes/174. Accessed 9 Oct. 2026.

“Owen (Name).” Wikipedia, Wikimedia Foundation, en.wikipedia.org/wiki/Owen_(name). Accessed 9 Oct. 2026.