Matt sits next to 4 phonetic neighbors — Mat, Nat, and Pat are the closest matches by sound. Most share Matt's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"gift of God, gift of Yahweh"
"white, silver (ancient root)"
"pine tree"
"beautiful fragrance"
"love, romantic feeling"
"surname-to-given-name transfer"
"blooming, flourishing"
"heart"
"my vision, my sight"
"kind birth"
"from Wynstan's estate"
"companion, friend"
"the koa tree (strength)"
"God strengthens, God will strengthen"
"friend, darling"
"gift (modern American coinage)"
"little gift of God"
"star-shaped flower"
"hillside, river bank"
"modern American coinage (rhyming name family)"
"pure (via Katharina in Norwegian use)"
Similar sound: These names share phonetic patterns with Matt — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Matt.
Rhythm: Matt is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.