Shrinkage has many meanings.
- Shrinkage (accounting) – the loss of products
- Shrinkage (statistics) – a technique to improve an estimator
- Shrinkage (fabric) – a common problem when doing laundry
- Shrinkage (casting) – a casting defect brought about by the reduction in volume of the cast material as it cools and solidifies
- Slang term referring to human penis size, particularly when the penis and scrotum contract in response to chilling.