Arenys de Munt (Catalan pronunciation: [əˈɾɛɲz ðə ˈmun], locally [əˈɾɛɲʒ ðə ˈmun], arenys being Catalan for "sands (of a seasonal creek)", and de munt for "up hill" as opposed to Arenys de Mar, "sands by the sea") is a municipality in the comarca of the Maresme in Catalonia, Spain.

The B-511 road links the town with Arenys de Mar, Vallgorguina and Sant Celoni.

[4][5] On September 13, 2009, the municipality held a symbolic referendum (with no legal status under the Spanish Constitution) on self-determination and independence for Catalonia.

The participation rate was 41% (33% of the town's entire population, including those under the voting age[6]).

[7] The referendum gave momentum to a movement for similar consultations to be held in other municipalities across Catalonia, including a co-ordinated vote in multiple municipalities, which was held a week later, on December 13.