Argalasti (Greek: Αργαλαστή) is a village and a former municipality in Magnesia, Thessaly, Greece.

It is an important commercial and tourism center of the area with a rich cultural tradition.

Argalasti is a stopping point for those headed for the nearby beaches of the Pagasetic Gulf (Chorto, Kalamos, Lefokastro) or the Aegean Sea (Potistika, Melani, Paltsi).

An example of the architecture of the beginning of the 20th century is the church tower of Sts.

The municipal unit Argalasti is subdivided into the following communities (constituent villages in brackets): This Pelion town is known for its buildings of architectural interest.