Nathalie sits next to 3 phonetic neighbors — Natalie, Natalia, and Natalee are the closest matches by sound. Most share Nathalie's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"born on Christmas Day"
"beloved, of the sea"
"elevated, great one"
"lame, the lame one"
"grace, favor"
"short form of Helena or Magdalena"
"earth"
"welcome, greetings"
"angel, messenger (of God)"
"pure, holy, chaste"
"God is gracious"
"precious gem"
"dark settlement, coal village"
"mighty in battle, strength in battle"
"angelic, messenger of God"
Similar sound: These names share phonetic patterns with Nathalie — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Nathalie.
Rhythm: Nathalie is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.