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