Look up classifier in Wiktionary, the free dictionary.
Classifier may refer to:
- Classifier (linguistics), or measure word, especially in East Asian languages
- Classifier handshape, in sign languages
- Classifier (UML), in software engineering
- Classification rule, in statistical classification, e.g.:
- Deductive classifier
- Subobject classifier, in category theory
- An air classifier or similar machine for sorting materials
- Classifier (machine learning)