Kornos (Greek: Κορνός) is a traditional village of Lemnos, North Aegean, Greece.

It is well known for its characteristic neoclassical mansions and the pastries produced in a local small industry.

Amongst the main attractions of Kornos are the churches of the Assumption of the Virgin (Κοίμησις της Θεοτόκου) and St. Andrew (Άγιος Ανδρέας).

About two km from the village are located the thermal springs of the island, called Therma (Θέρμα).

The water of the springs, that is preferred for daily drinking by many residents of the island, is also used for therapeutic purposes.