Regeneration is renewal through the internal processes of a body or system. Something which embodies this action can be described as regenerative. Many titles of cultural work and cultural and scientific concepts use the term, and may refer to:

• Regeneration (biology), the ability to recreate lost or damaged tissues, organs and limbs
• Regeneration in humans, the ability of humans to recreate, or induce the regeneration of, lost tissue
• Regeneration (theology), the doctrine of being born again
• Regenerative (design), a process for sustainable development
• Regenerative agriculture, a sub-category of organic agriculture