Daskalogiannis
| Ioannis Vlachos | |
|---|---|
| Native name | Ιωάννης Βλάχος | 
| Nickname(s) | 
 | 
| Born | 1722 or 1730 Anopolis, Crete, Ottoman Empire | 
| Died | 17 June 1771 (age 40–49) Heraklion, Crete, Ottoman Empire | 
Ioannis Vlachos (Greek: Ιωάννης Βλάχος), better known as Daskalogiannis (Δασκαλογιάννης; 1722/30 – 17 June 1771), was a wealthy shipbuilder and shipowner who led a Cretan revolt against Ottoman rule in the 18th century.