Manetas or Manettas (Μανέτας/Μανέττας) is a Greek surname, common in Arcadia. It can refer to:
Panagiotis Manetas (1837–1908), Greek politician Ioannis Manetas (1878–1943), Greek politician Konstantinos Manetas (1879–1960), Greek general and politician Theodoros Manetas (1881–1947), Greek general and politician Miltos Manetas (born 1964), Greek painter