Killian - Name Meaning and Origin

The boy's name Killian \k(il)-lian\ is pronounced KIL-ee-an. It is of Irish and Gaelic origin, and its meaning is "small, fierce". From the same root as Kelly. The name is popular in France.

Killian has 3 variant forms: Kilean, Kilian and Killean.

For more information, see also the related name Cillian.

Baby names that sound like Killian are Gillian, Gillean, Gillion, Gillan, Gilian, Keillan, Kellin and Kellan.

Killian is a very rare male first name and a very popular surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the boy's name Killian. Click here to compare Killian with related baby names.