Arrentela is a former civil parish in the municipality (concelho) of Seixal, Lisbon metropolitan area, Portugal.

In 2013, the parish merged into the new parish Seixal, Arrentela e Aldeia de Paio Pires.

[1] The population in 2011 was 28,886,[2] in an area of 10.17 km².

[3] It is situated on the south side of the estuary of the river Tagus.

The freguesia of Arrentela included the following localities: