A bicep or biceps is a two-headed muscle that lies on the upper arm.
Bicep or BICEP may also refer to:
- Bicep (duo), a duo from Belfast, Northern Ireland
- Bicep (album) (2017)
- BICEP and Keck Array (Background Imaging of Cosmic Extragalactic Polarization)
- Business for Innovative Climate and Energy Policy
- Bicep, a domain-specific language (DSL) that uses declarative syntax