|Administrative region||West Macedonia|
|Municipal unit||Agios Kosmas|
|Elevation||980 m (3,220 ft)|
|• Population||25 (2011)|
|• Area (km2)||9.447|
|Time zone||EET (UTC+2)|
|• Summer (DST)||EEST (UTC+3)|
|Postal code||511 00|
Kalloni (Greek: Καλλονή) is a village and a community of the Grevena municipality. Before the 2011 local government reform it was a part of the municipality of Kosmas o Aitolos, of which it was a municipal district. The 2011 census recorded 25 residents in the village. The community of Kalloni covers an area of 9.447 km2.
The settlement was established in 1690 and was officially listed in the archives of the Monastery of Zavorda in 1797. The village was liberated in the Balkan wars in 1912 and renamed to Kalloni in 1926. Its former name was Lountzi.
- "Απογραφή Πληθυσμού - Κατοικιών 2011. ΜΟΝΙΜΟΣ Πληθυσμός" (in Greek). Hellenic Statistical Authority.
- Kallikratis law Greece Ministry of Interior (Greek)
- "Population & housing census 2001 (incl. area and average elevation)" (PDF) (in Greek). National Statistical Service of Greece.