Argentona (Catalan pronunciation: [əɾʒənˈtonə]) is a municipality in the comarca of the Maresme in Catalonia, Spain.

It is situated on the south-east side of the granite littoral zone, to the north-west of Mataró.

The late gothic church of Sant Julià was restored by Josep Puig i Cadafalch.

The same architect designed Casa Gari, a private residence adjoining the chapel of Sant Miquel del Cros, a work in the style of Antoni Gaudí by Lluís Bonet (1929).

The town festival (Festa Major) occurs every 4 August, to celebrate Saint Dominic.