Killian is a masculine name of uncertain origin. As of 2026, it ranks #627 in the U.S. SSA chart. Killian is associated with a bold aesthetic.
Last reviewed · 2026-05-18
Chapter 01 / 05
What does Killian mean?
Killian means an older, unattested meaning and comes from uncertain origin.
n Anglicized variant of Cillian, Killian carries an air of strength with its sharp consonants and commanding tone. Its two-syllable rhythm strikes a balance between modern appeal and classic roots, making it distinct yet familiar.
Chapter 02 / 05
How does Killian sound?
Chapter 03 / 05
How popular is Killian?
As of 2026, Killian ranks #627 in the United States.
Chapter 04 / 05
What names are similar to Killian?
Chapter 05 / 05
About the name Killian
- What does the name Killian mean?
- Killian means an unattested or ambiguous historical meaning and comes from uncertain origin.
- Where does the name Killian come from?
- Killian traces to a uncertain origin and continues to appear in U.S. SSA records.
- How popular is the name Killian?
- As of 2026, Killian ranks #627 in the United States according to SSA data.
- Is Killian a boy or girl name?
- Killian is most commonly used as a masculine name.