Pietro Crinito (January 9, 1475 – July 5, 1507), known as Crinitus, or Pietro Del Riccio Baldi (derived from Riccio, 'curly', translated into Latin as crinitus), was a Florentine humanist scholar.
He is best known for his 1504 commonplace book, De honesta disciplina. This has been taken to be a source for the work of Nostradamus.