| Cleomenes II | |
|---|---|
| King of Sparta | |
| Reign | 370–309 BC |
| Predecessor | Agesipolis II |
| Successor | Areus I |
| Died | 309 BC |
| Issue | Acrotatus, Cleonymus |
| Greek | Κλεομένης |
| Dynasty | Agiad |
| Father | Cleombrotus I |
Cleomenes II (‹See Tfd›Greek: Κλεομένης; died 309 BC) was king of Sparta from 370 to 309 BC. He was the second son of Cleombrotus I, and grandfather of Areus I, who succeeded him. Although he reigned for more than 60 years, his life is completely unknown, apart from a victory at the Pythian Games in 336 BC. Several theories have been suggested by modern historians to explain such inactivity, but none has gained consensus.