Replication may refer to:

• Replication (scientific method), one of the main principles of the scientific method, a.k.a. reproducibility
  • Replication (statistics), the repetition of a test or complete experiment
  • Replication crisis
• Self-replication, the process in which an entity (a cell, virus, program, etc.) makes a copy of itself
  • DNA replication or DNA synthesis, the process of copying a double-stranded DNA molecule
    • Semiconservative replication, mechanism of DNA replication
  • Viral replication, the process by which viruses produce copies of themselves
• Replication (metallography), the use of thin plastic films to duplicate the microstructure of a component
• Self-replicating machines

• Replication (computing), the use of redundant resources to improve reliability, fault-tolerance, or performance
• Replication (optical media), the manufacture of CDs and DVDs by means other than burning writable discs

• Replicator (disambiguation)