Baby Names of Ireland

Iollan: Meaning, Pronunciation and Origin

Iollan is an Irish boy's name meaning “one who worships a different god.” Here’s how to say it, where it comes from, and names that go well with it.

Updated September 2026

How to say it
UL-anTwo syllables, stress on the first
Meaning
One who worships a different god
Gender
Boy

How do you pronounce Iollan?

Iollan is pronounced UL-an. It has two syllables, with the stress on the first.

What does Iollan mean?

Iollan means “one who worships a different god.” Iollan was the son of the High King Fergus Mac Roth and a champion at the court of King Conchobhar Mac Nessa. When Deirdre and Naoisi eloped to Scotland Iollan went with his father to persuade them to return to Ireland, believing that Conchobhar really had forgiven them. When he returned with them and discovered that all Conchobhar really wanted was revenge he died defending them.

Iollan wasn't in the 2025 tables, which list names given to at least three babies. It was last recorded in 2013, when 4 baby boys got the name. It was most popular in 2013, when 4 baby boys were named Iollan, No. 605 that year. It first appears in the records in 2011, with 3 baby boys.

0241970198019902000201020204 in 2013
Baby boys named Iollan each year. Source: Central Statistics Office, Irish Babies’ Names 2025 (data: table VSA50, boys' names, CC BY 4.0).
See the numbers by year
YearBabiesRank
20134No. 605
20113No. 730

Iollan in Ogham

Ogham is the oldest way of writing Irish. It was carved along the edges of standing stones, mostly between the 4th and 6th centuries, and read from the bottom up. In later tradition each letter was named after a tree or plant. Here’s Iollan, letter by letter.

᚛ᚔᚑᚂᚂᚐᚅ᚜
  1. IIodhadh, yew
  2. OOnn, gorse
  3. LLuis, rowan
  4. LLuis, rowan
  5. AAilm, pine
  6. NNion, ash

Write any name in Ogham with our Ogham translator

Names that go with Iollan

Similar names

Questions about Iollan

How do you pronounce Iollan?
Iollan is pronounced UL-an. Two syllables, stress on the first.
What does Iollan mean?
Iollan means “one who worships a different god.”
Is Iollan a girl's name or a boy's name?
Iollan is a boy's name.