Aïn Arnat (in Arabic : عين أرنات) is a town and commune in Sétif Province in north-eastern Algeria.

Bordered by Ain Abessa commune from the north, Mezloug from the south, Sétif from the east and by Bordj Bou Arréridj Province from the west.

due to its location on the High Plateaus at an elevation of 1,096 metres (3,596 ft), it is one of the coldest regions during winter in Algeria.It frequently sees an annual snowfall of up to 40 centimetres (16 in).

Flash floods are rare but have recently occurred around the spring and fall seasons.

The summer is fairly hot where extreme heat waves are common around the month of July where temperatures can sometimes even reach 40 °C (104 °F).