Vaulx-en-Velin (French pronunciation: [vo ɑ̃ v(ə)lɛ̃] ⓘ) is a commune in the Metropolis of Lyon, Auvergne-Rhône-Alpes, eastern France.

The rivers, including the Rhône, regularly overflowed their banks, leaving behind a swampy area.

The Saint Jean Villeurbanne dam, built between 1879 and 1882, protects Vaulx-en-Velin from flooding.

In September 1979 the first Banlieue suburban youth riots in France broke out in the Cité Olivier-de-Serres in Vaulx-en-Velin.

[4] On 16 December 2022, a large fire broke out in a seven-storey apartment building, killing ten people, including five children, and injuring 14.