Portishead may refer to:
- Portishead (band), a British band
- Portishead (album), the 1997 album by Portishead
- Portishead, Somerset, a coastal town in North Somerset, England
- Portishead power station
- Portishead railway, a branch line closed in 1981
- Portishead railway station, a former station
- Portishead Town F.C.
- Portishead Radio, a maritime radio communications station based in Burnham-on-Sea, Somerset, England