Valtonera (Greek: Βαλτόνερα; before 1928: Κάτω Νεβόλιανη – Kato Nevoliani)[2][3] is a small village in the region of Florina, northern Greece.

[4] The 1920 Greek census recorded 171 people in the village, and 171 inhabitants (33 families) were Muslim in 1923.

[5] Following the Greek–Turkish population exchange, Greek refugee families in Kato Nevoliani were from the Caucasus (54) in 1926.

The church of the village which holds an annual festival on 21 May is dedicated to Saints Constantine and Helena.

[7] In 2003 Dimitra Koutsouridou of Valtonera entered the Guinness World Records, gathering a total of 8,514 pencil sharpeners, which are located and exhibited at the Elementary School of the village.