The Voras Mountains (Greek: Όρος Βόρας; also Boras), also known as Nidže (Macedonian:  Ниџе , Turkish: Nice Dağı) are a mountain range situated on the border between Greece and the Republic of Macedonia. It separates the Pella regional unit on the Greek side in the sourth from the Mariovo region on the Macedonian side in the north. The tallest peak in the range is Kaimakchalan at 2,524 m (8,281 ft).