NatesEnglish, Jewish It's probably from the given name Nate, the origin is said to be Jewish*, but the ancestors immigrated to English speaking countries.
NatsukiJapanese Natsu means "summer" and ki means "tree, wood".
NatsumiJapanese (Rare) This is occasionally,but rarely used as a last name. Natsu means "Summer",and Mi in this surname means "Look". So the literal meaning of this could be "Look at Summer",or "The Look of Summer"... [more]
ObaJapanese Alternate transcription of Japanese 大場 (see Ōba).
ObaraJapanese It's written like : 小 (O meaning small) and Bara meaning "Plain". Masakazu Obara's last name is pronounced like this. He is an anime director, he worked on Accel World.