Niccolò de' Niccoli (1364 – 22 January 1437) was an Italian Renaissance humanist. He was born and died in Florence, and was one of the chief figures in the company of learned men which gathered around the patronage of Cosimo de' Medici. Niccoli's chief services to classical literature consisted in his work as a copyist and collator of ancient manuscripts; he corrected the text, introduced divisions into chapters, and made tables of contents.