Ky sits next to 4 phonetic neighbors — Kai, Ky, and Guy are the closest matches by sound. Most share Ky's Scandinavian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sky (variant of Kai)"
"the great one, the high one"
"invented name, possibly from Tariq (morning star)"
"of Mars, dedicated to the war god"
"treasurer, keeper of treasure"
"courteous, well-mannered"
"small flock, family group"
"excellent, authentic (slang)"
"religious official, one who performs sacred rites"
"God has helped, helped by God"
"fidelity, eternity"
"noble and ready, prepared for battle"
"heart's friend, chosen friend"
"creative spelling of Legend (things to be read, from Latin legenda)"
"lord have mercy (liturgical phrase)"
"warrior spirit"
"tailor, cloth cutter"
"new house, bright place"
"divine wonder"
"lord, chief, ruler"
Similar sound: These names share phonetic patterns with Ky — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Multiple origins, giving them the same cultural heritage as Ky.
Rhythm: Ky is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.