Sky sits next to 4 phonetic neighbors — Skye, Skylar, and Skyler are the closest matches by sound. Most share Sky's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"the sky, cloud"
"the other, foreign (one)"
"from Brittany, land of the Britons"
"dark, rich (possibly referring to the dark Adriatic waters)"
"woman from Mount Cynthus"
"mistress, lady of the house"
"jaybird; modern melodic invention"
"one who hunts"
"blessed, happy"
"exultant, glad"
"noble, high"
"grace, favor"
"ancient, primordial"
"combination of Z + Lee (clearing, meadow)"
"child of the moon"
"turbulent, passionate (figurative)"
"something precious and valuable"
"God is gracious"
"beautiful picture, painted beauty"
"royal one, of royal blood"
"God is just, my witness is God"
Similar sound: These names share phonetic patterns with Sky — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse sky origins, giving them the same cultural heritage as Sky.
Rhythm: Sky is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.