Foxtail or fox tail may refer to:

• Foxtail (diaspore), the dry spikelet or spikelet cluster of some grasses
  • Alopecurus, foxtail grasses - the scientific name literally means "fox tail"
  • Bromus madritensis, foxtail brome
  • Hordeum jubatum, foxtail barley
  • Setaria, foxtail millets
• Acalypha hispida, chenille plant or fox tail
• Asparagus densiflorus, foxtail fern
• Lycopodium clavatum, foxtail clubmoss
• Wodyetia, foxtail palm
• Agave attenuata, an agave species also known as the Foxtail

• Foxtail Peak, Antarctica
• Foxtail, a character in the animated series OK K.O.! Let's Be Heroes
• Foxtails (band)