Reconstruction may refer to:
- 3D reconstruction in computer vision
- Ancestral reconstruction, the analysis of organisms' relationships via genome data
- Cone beam reconstruction, a computational microtomography method
- Crime reconstruction
- Event reconstruction, the interpretation of signals from a particle detector
- Forensic facial reconstruction, the process of recreating the face of an individual from its skeletal remains
- Iterative reconstruction, methods to construct images of objects
- Reconstruction conjecture, in graph theory
- Reconstructive plastic surgery
- Shooting reconstruction
- Signal reconstruction, the determination of an original continuous signal from samples
- Single particle reconstruction, the combination of multiple images of molecules to produce a three-dimensional image
- Surface reconstruction, the process which alters atomic structure in crystal surfaces
- Tomographic reconstruction
- Vector field reconstruction, the creation of a vector field from experimental data