Depending on your location, you may be able to keep a variety of monkeys as pets. Certain species of primates such as capuchins, tamarins, and marmosets are kept as exotic pets.
Owning monkeys as pets requires a large commitment, knowledge, and plenty of room for the primate to live and move. Before considering a primate as a pet, make sure it is legal in your area and you can provide the animal with the necessary care and attention it requires.