Naitō, Naito or Naitou (written: 内藤) is a Japanese name, also transliterated as Naitoh or Nightow. Notable people with the surname include:
* , vice president of Lenovo's PC and Smart Devices business unit, known as the "Father of ThinkPad"
* , American businessman, civic leader and philanthropist
* , Japanese professional boxer
* , Japanese female volleyball player
* , Japanese professional shogi player
* , Japanese samurai
* , Japanese samurai
* , Japanese samurai
* , Japanese daimyo
* , Japanese samurai
* , Japanese hurler
* , Japanese photographer
* , Japanese daimyo
* , Japanese daimyo
* , Japanese samurai
* , Japanese voice actor
* , Japanese architect, engineer, and professor
* , Japanese photographer
*, Japanese professional wrestler
* , Japanese historian
* , Japanese sculptor
* , Japanese manga artist
*, Japanese racewalker
*, Japanese footballer
*, Japanese tennis player
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Japanese-language surnames