Pampas grass or pampas-grass or Pap's grass is a common name which may refer to any of several similar-looking, tall-growing species of grass:

• Species of Cortaderia including:

• Cortaderia selloana and its selected cultivars
• Cortaderia jubata (Andean pampas grass, purple pampas grass)

• Erianthus ravennae (syn. Saccharum ravennae) (giant woolly-beard grass, hardy pampas grass, Ravenna grass, ekra)
• Miscanthus sinensis (Japanese pampas grass)