Keillan as a Baby Name. Meaning and Origin of Keillan

What is the meaning of the name Keillan ?

The baby name Keillan is a Male name , 2 syllables long and is pronounced KEE-lən (IPA: /ˈkiːlən/) — sometimes KEL-ən (IPA: /ˈkɛlən/).

Keillan is Irish in Origin.

Keillan is a modern English given name most plausibly derived from the Irish Gaelic Caolán, built from caol “slender, narrow” with the diminutive -án, yielding the meaning “little slender one.” In Irish, Caolán is pronounced roughly KAY-lawn/KEE-lawn; Keillan in English tends to be KEE-lən or KAY-lən. The spelling with double l reflects contemporary stylistic variation and distinguishes it from similar names. It should not be confused with Cillian/Killian, which comes from cill “church” and has a different origin.

Caolán is attested in Gaelic use and saw renewed visibility during the late 20th‑century revival of Irish given names. Anglicized and creative spellings then spread in the wider English‑speaking world, with Keillan appearing in recent decades alongside Keelan, Keilan, Kealan, Keylan, Kaelan, and Caelan; the original Irish form Caolán remains in use in Ireland. Related but etymologically separate are Kellan/Kellen, which have distinct roots.

⚙ Keillan is vanishingly rare. We hold just 1 recorded use of it, from 1 country.