|Administrative region||Central Macedonia|
|• Municipal unit||160.9 km2 (62.1 sq mi)|
|Elevation||80 m (260 ft)|
|• Municipal unit||8,963|
|• Municipal unit density||56/km2 (140/sq mi)|
|Time zone||EET (UTC+2)|
|• Summer (DST)||EEST (UTC+3)|
|Postal code||622 00|
Nigrita (Greek: Νιγρίτα) is a town and a former municipality in the Serres regional unit, Greece. Since the 2011 local government reform it is part of the municipality Visaltia, of which it is the seat and a municipal unit. The municipal unit has an area of 160.888 km2. It is situated in the wide plain south of the river Strymonas, at the northern foot of the Kerdylio mountains, in the southern part of the Serres regional unit. Nigrita is located 20 km south of Serres, and 56 km northeast of Thessaloniki.
Near Nigrita have been found several sites of ancient settlements of the Hellenistic and Roman times. One of them was perhaps the site of the ancient city Bisaltia, capital of Bisaltes, which is known by Stephanus of Byzantium.
Nigrita was most likely founded in the middle of the 16th century. At the beginning of the 19th century, it was a prosperous town where cotton, silver and copper were processed. Although inhabitants of Nigrita participated in the Greek war of independence, the town did not join Greece until after the 1913 Second Balkan War.
The municipal unit Nigrita is subdivided into the following communities:
|Year||Town population||Municipality population|
- "Απογραφή Πληθυσμού - Κατοικιών 2011. ΜΟΝΙΜΟΣ Πληθυσμός" (in Greek). Hellenic Statistical Authority.
- Kallikratis law Greece Ministry of Interior (in Greek)
- "Population & housing census 2001 (incl. area and average elevation)" (PDF) (in Greek). National Statistical Service of Greece.
-  D. C. Samsaris, Historical Geography of Eastern Macedonia during the Antiquity (in Greek), Thessaloniki 1976 (Society for Macedonian Studies), p. 109, 115. ISBN 960-7265-16-5.