Weibel may refer to:
- Weibel Scientific - a Danish designer and manufacturer of doppler radars
- Weibel–Palade body - storage granules of the endothelial cells, that form the inner lining of the blood vessels and heart
- Weibel Elementary School
- Weibel M/1932 - a light machine gun concept of Danish origin
- Weibel instability - a plasma instability present in homogeneous or nearly homogeneous electromagnetic plasma