Cross section may refer to:
- Cross section (geometry)
- Cross-sectional views in architecture and engineering 3D
- Cross section (geology)
- Cross section (electronics)
- Radar cross section, measure of detectability
- Cross section (physics)
- Absorption cross section
- Nuclear cross section
- Neutron cross section
- Photoionisation cross section
- Gamma ray cross section
- Cross Section (album), 1956 musical album by Billy Taylor
See also
- Cross section (fiber), microscopic view of textile fibers.
- Section (fiber bundle), in differential and algebraic geometry and topology, a section of a fiber bundle or sheaf
- Cross-sectional data, in statistics, econometrics, and medical research, a data set drawn from a single point in time
- Cross-sectional study, a scientific investigation utilizing cross-sectional data
- Cross-sectional regression, a particular statistical technique for carrying out a cross-sectional study