Dinu Nicodin (Romanian pronunciation: ['dinu niko'din]; pen name of Nicolae Ioanid; 1886–1948) was a Romanian writer affiliated with the modernist venue Sburatorul.
Having an aristocratic (boyar) background, he was an eccentric and adventurous figure who only turned to literature as a hobby, and whose scattered works were generally well received by critics during his lifetime.
Nicodin was a promoter of works by his younger colleagues, and cultivated close friendships with those of his generation, being primarily noted for his presence on the interwar's social scene.
Nicodin's two novels, Lupii ("The Wolves") and Revolutia ("The Revolution"), have earned praise for their erudition and their characteristic narrative style, but these traits have also made him hard to place in relation to 20th century currents in Romanian literature.
The writer largely faded out of critical memory by 1950, although there has been a significant resurgence in interest in later decades.