Arvière-en-Valromey (French pronunciation: [aʁvjɛʁ ɑ̃ valʁɔmɛ]) is a commune in the Ain department in eastern France.

The municipality was established on 1 January 2019 by merger of the former communes of Brénaz, Chavornay, Lochieu and Virieu-le-Petit.

The average annual rainfall is 1,363.9 mm (53.70 in) with November as the wettest month.

The temperatures are highest on average in July, at around 20.2 °C (68.4 °F), and lowest in January, at around 1.7 °C (35.1 °F).

This Ain geographical article is a stub.