Ilia sits next to 5 phonetic neighbors — Ilya, Eli, and Elias are the closest matches by sound. Most share Ilia's Russian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"my God is Yahweh"
"gift of God"
"immortal, deathless"
"battle, fighter, combatant"
"God is gracious"
"one who is led (possibly referring to blindness)"
"from the island of Cyprus"
"brave, lion-hearted"
"the anointed one"
"God is salvation"
"defender of the people"
"tiller of the soil"
"renowned power"
"God has seen my affliction"
"from Athens"
"one who does not die"
Similar sound: These names share phonetic patterns with Ilia — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Ilia.
Rhythm: Ilia is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.