Vectra may refer to the following:
- Opel Vectra car (Chevrolet Vectra, Holden Vectra, Vauxhall Vectra)
- Opel Vectra GTS V8 DTM car
- HP Vectra computer series by Hewlett-Packard
- Vectra AI, a private company specializing in artificial intelligence
- Vectra (plastic), a brand of polymer products
- Global Vectra Helicorp Limited