Kilyan sits next to 5 phonetic neighbors — Killian, Cillian, and Kilian are the closest matches by sound. Most share Kilyan's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"church, monastic cell"
"priest"
"brave, vigorous power"
"bold place, wild one"
"mythical bird of rebirth"
"little battle, warrior spirit"
"initials, typically Robert James or Richard John"
"scorching, glowing"
"peaceful (from Latin pax)"
"Han dynasty, Chinese people"
"bright fame"
"land surrounded by water"
"son of consolation"
"God exists, God is"
"one who moves smoothly"
"from the Frankish haigro (heron)"
"beloved, dear"
"son of Hutch (Hugh)"
"fair, bright one"
"steep meadow or woodland clearing"
Similar sound: These names share phonetic patterns with Kilyan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Kilyan.
Rhythm: Kilyan is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.