Cortland sits next to 3 phonetic neighbors — Cortlandt, Cortland, and Portland are the closest matches by sound. Most share Cortland's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"short land, curtailed land"
"Creative combination name; individual and unique"
"angelic, messenger"
"thankful, God has heard"
"dark one, little dark one"
"eighth, born eighth"
"to wander, to travel freely"
"God is gracious"
"eternal king, pure lineage"
"modern invented name with melodic sound"
"To call to mind; to remember (from recordari)"
"a fast-moving projectile, symbol of speed and ambition"
"Yahweh has treasured"
"settlement near the beak-shaped stone"
"ancestor's descendant (alternative etymology)"
"victory of the people (via Nicholas root)"
"from Airelle (beloved place)"
"relating to time or the hours"
"from the ledge farm, shelf settlement"
"sea-connected, modern creative"
"flowing water"
Similar sound: These names share phonetic patterns with Cortland — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Cortland.
Rhythm: Cortland is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.