The article aims to present the classifications of decentralised agencies of
the European Union. As a basis for classifications the Author used temporal,
instrumental, structural as well as functional approach. The analysis in this
paper clearly shows, that some of the classification of the EU agencies (eg. instrumental
classification), show that the EU agencies very often defy attempts
to classify them. For this reason, the Author notes, that despite their value for
better understanding and bringing structure and insight into the functioning
of EU agencies, all their classifications should be treated with some caution.