Cillian

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Fact sheet

Name
Cillian
Gender
Boy name
Syllables
2

Cillian is a male first name that is regarded as both a French and an Irish variant of the name Kilian. The name likely has its origins in the Gaelic word ceall, which means 'church', and traces back to an Irish saint from the 7th century.

What does the name Cillian mean?

Cillian is considered a male first name that has both French and Irish roots and is regarded as a variant of Kilian. The origin of the name may trace back to the Gaelic word ceall, which means 'church', and refers to an Irish saint from the 7th century. The meaning of Cillian is often translated as 'the visionary head', but it can also be interpreted as 'the churchman', 'the monk', 'the great', 'the strong', 'the warrior', and 'the fighter'. It is unclear exactly where the name originates; it likely derives from the Celtic ceallach or ceallaigh, meaning 'war', 'battle', 'strife', or 'visionary', or from the Old Irish ceall, meaning 'the church' and 'the monastery'. Other variants of the name include Ceallach, Cillin, Cilian, Killian, Kylian, Kyliann, Kyllian, Cylian, Kelian, and Kelyan. The name became known through Saint Kilian, who served as an Irish missionary bishop in Franconia, particularly in Würzburg, during the 7th century and is regarded as the patron saint of the Franks.

Where does the name Cillian come from?

Cillian is a male first name with Old Irish roots that carries the meaning 'the visionary head'. The Old Irish word formation includes ceallach or ceallaigh for 'war', 'battle', 'strife', 'visionary' (Celtic) as well as ceall for 'the church' and 'the monastery' (Old Irish). The name is common in both French and Irish languages.

How do you pronounce Cillian?

Cillian has a two-syllable, soft sound structure. In German pronunciation, it is usually pronounced as 'Kil-li-an' [ˈkɪli̯an], while in English, the pronunciation 'Sil-ian' [ˈsɪliən] is common. It begins with a clear K or S sound, giving the name various tonal nuances. The doubling of the L creates a gentle connection, and the ending '-ian' sounds open and lightly resonant. Thus, Cillian conveys a modern yet tradition-conscious impression - elegant, harmonious, and international.

When is the name day of Cillian?

The name day for Cillian falls on July 8.

Popularity

In Germany, Cillian enjoys great popularity and currently ranks 1,344th in the list of the most common male first names. Its best placement was in 2007 at 1,124th. In the last ten years, the name has been newly assigned about 130 times, placing it 2,021st in the ten-year statistics. Between 2010 and 2024, Cillian ranks 2,258th.

Nicknames & pet names

Cilli / Lian

Famous people

  • Cillian Lordan (Irish footballer)
  • Cillian Murphy (British actor)
  • Cillian O'Connor (Irish football player)
  • Cillian Sheridan (Irish football player)
  • Cillian Vallely (Irish musician)
  • Cillian Willis (rugby player from Ireland)

Frequently asked questions about the name Cillian

Where does the name Cillian come from?

Cillian has Old Irish roots and is a variant of the name Kilian. Its origin may trace back to the Gaelic word 'ceall', which means 'church'.

What does the name Cillian mean?

Cillian is often translated as 'the visionary head', but it can also be understood as 'the churchman', 'the monk', 'the great', 'the strong', 'the warrior', or 'the fighter'.

Is Cillian a popular name?

Cillian is gaining popularity, especially in Ireland and other countries, and is also used in various spelling variants such as Killian and Kylian.

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