One of Socrates’s friends and “demesmen” (or member of the same township), and the father of Critobulus. During his apologia, Socrates refutes the claim that he has corrupted the Athenian youth. In doing so, he suggests that Crito—who knows him well and is present at the trial—would surely stand up and speak honestly if he believed that Socrates had harmed his son. After the jury finds Socrates guilty, he has an opportunity to ask for a specific punishment. Since he has no money, he says that Crito, Critobulus, Apollodorus, and Plato—all good friends of his—have offered to lend him money so that he can set the penalty at a fine of “thirty minas.”