Nikkei can refer to:

• The Nihon Keizai Shimbun (日本経済新聞, Nihon Keizai Shimbun^?), abbreviated 日経
  • The Nikkei 225 (日経225, Nikkei 225^?) Stock market index, published by Nihon Keizai Shimbun
• Nikkei people (日系人, Nikkeijin^?), often simply Nikkei, refers to emigrants of Japanese ancestry or their descendants.

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