Bricquebec-en-Cotentin (French pronunciation: [bʁikbɛk ɑ̃ kɔtɑ̃tɛ̃], literally Bricquebec in Cotentin) is a commune in the department of Manche, northwestern France.

The municipality was established on 1 January 2016 by merger of the former communes of Bricquebec (the seat), Les Perques, Quettetot, Saint-Martin-le-Hébert, Le Valdécie and Le Vrétot.

The average annual rainfall is 1,207.9 mm (47.56 in) with December as the wettest month.

The temperatures are highest on average in August, at around 17.2 °C (63.0 °F), and lowest in February, at around 5.6 °C (42.1 °F).

The population data given in the table below refer to the commune in its geography as of January 2020.