Islay sits next to 4 phonetic neighbors — Isla, Isley, and Ailey are the closest matches by sound. Most share Islay's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"island (Scottish Hebridean island name)"
"victory peace"
"heaven, sky"
"noble, of noble kind"
"stern, strict, severe"
"divine, royal"
"clearing with box trees"
"arrogant, haughty"
"God is my strength"
"noble, of the Goths"
"son of Matthew, gift of God"
"strong, courageous"
"captivating beauty (ensnaring)"
"heavenly chief"
"gift of God"
"peace, joy"
"jade stone; green gem"
"bearer of good news"
"sea of bitterness or star of the sea"
"defender of the people"
"precious gem"
Similar sound: These names share phonetic patterns with Islay — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse origins, giving them the same cultural heritage as Islay.
Rhythm: Islay is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.