Nikolai Dmitriev

Nikolai Dmitriev or Nikolay Dmitriyev () may refer to:

• Nikolai Dmitriev (composer) (1829–1893), Russian pianist and composer
• Nikolai Dmitriev (linguist) (1898–1954), Soviet linguist
• Nikolai Dmitriev-Orenburgsky (1838–1898), born Nikolai Dmitrievich Dmitriev, Russian painter
• Nikolay Kashkin (1839–1920), a pseudonym