Widnes is an industrial town within the borough of Halton, in Cheshire, England.

Widnes may also refer to:

• Marie Lovise Widnes (born 1930), Norwegian poet
• Municipal Borough of Widnes, West Derby, Merseyside, England
• Widnes (UK Parliament constituency), a county constituency in England
• Widnes railway station, a Grade II listed building in Cheshire
• Widnes Saints, a rugby league team
• Widnes Vikings, a professional rugby league club

• Amphithalamus
• Amphithalamus elspethae
• Amphithalea
• Amphitheater at Clark County
• Amphitheater at Pompeii
• Amphitheater Mountain
• Amphitheater Mountain (disambiguation)
• Amphitheater Mountain (Montana)
• Amphitheater of Milan
• Amphitheater of Mérida
• Amphitheater of Pompeii
• Amphitheater of Statilius Taurus
• Amphitheater of statilius taurus
• Amphitheater Schools
• Amphitheatre Anglais
• Amphitheatre at Pompeii
• Amphitheatre at Station Square
• Amphitheatre Glacier
• Amphitheatre Lake (Antarctica)
• Amphitheatre of Durrës
• Amphitheatre of Milan
• Amphitheatre of Mérida
• Amphitheatre of Pompei
• Amphitheatre of Pompeii
• Amphitheatre of pompeii