Alenna sits next to 5 phonetic neighbors — Alena, Elena, and Alanna are the closest matches by sound. Most share Alenna's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"bright, shining light"
"descendant of Raghaillach"
"foreign riches, lively"
"favor, grace"
"one who burns brightly"
"God is gracious, gift of God"
"pure one"
"woman from Magdala"
"enduring inheritance, what is left behind"
"valley + lake, meadow-pool"
"blooming, fertility"
"mountain child (yama + mari)"
"tribe woman"
"angel of hope, protector"
"garden of holly"
"hill meadow"
"noble, perfect"
"Gomeric's mountain or hill"
"love, affection"
"God is gracious"
"elm grove"
Similar sound: These names share phonetic patterns with Alenna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Alenna.
Rhythm: Alenna is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.