Nizhnedevitsk () is a rural locality (a settlement) in Novoolshanskoye Rural Settlement, Nizhnedevitsky District, Voronezh Oblast, Russia. The population was 870 as of 2010. There are 16 streets.
Nizhnedevitsk is located 19 km north of Nizhnedevitsk (the district's administrative centre) by road. Polyana is the nearest rural locality.