Keane sits next to 4 phonetic neighbors — Keen, Kane, and Kean are the closest matches by sound. Most share Keane's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"ancient, enduring"
"vigilant, watchful"
"road by the waterfall"
"drawn out of the water"
"one who gives light"
"noble, honorable"
"little wolf"
"from Dyce, Aberdeenshire"
"broad stone settlement"
"westward direction"
"clearing in the forest"
"victory of the people (through Nicholas derivation)"
"beloved"
"flower"
"archer, warrior of the yew"
"heart, mind (from Hugh root)"
"dark, full; complete darkness"
"of the faith, religion"
"loved, beloved"
Similar sound: These names share phonetic patterns with Keane — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Irish cían origins, giving them the same cultural heritage as Keane.
Rhythm: Keane is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.