Cleostratus (disambiguation)
Cleostratus (Ancient Greek: Κλεόστρατος, romanized: Kleóstratos, lit. 'renowned army') is a masculine name from Ancient Greece. Cleostratus may refer to:
- Cleostratus, an ancient Greek astronomer
 - Cleostratus (crater), a lunar crater
 - Cleostratus (insect), a genus of pygmy grasshoppers in the subfamily Metrodorinae
 - Cleostratus (mythology), a young boy in Greek mythology