Almyros or Halmyros is a town and a municipality of the regional unit of Magnesia, region of Thessaly, Greece. It lies in the center of prosperous fertile plain known as 'Krokio Pedio', which is crossed by torrents. Almyros is an important agricultural and commercial center of Magnesia, and is also developing as a tourist center for the area. The main agricultural products are tomatoes, cotton, wheat, almonds, peanuts and pistachio nuts.

Magnesia is one of the regional units of Greece. It is part of the region of Thessaly. Its capital is the city of Volos. About 70% of the population of Magnesia live in the Greater Volos area, which is the second-largest city in Thessaly and the third busiest commercial port in Greece.