Spillover may refer to:
- Spillover (imaging), an imaging effect
- Knowledge spillover, exchange of ideas among individuals
- Adsorption spillover
- Spillover, a component of the spillover-crossover model in psychology
- Work-life balance
- The influence on effective demand in one economic market resulting from disequilibrium in another market
See also
- Spillover effect, an economic effect
- Spillover II, an artwork by Jaume Plensa