We present results of a search for OB associations in NGC 300 .
Using an automatic and objective method ( PLC technique ) 117 objects were found .
Statistical tests indicate that our sample is contaminated by less than 10 detections due to random concentrations of blue stars .
Spatial distributions of detected associations and H II regions are strongly correlated .
The size distribution reveals a significant peak at about 60 \mu rad which corresponds to 125 parsecs if a distance modulus of 26.66 mag is assumed .
Besides the objects with sizes corresponding to typical associations we also found several much larger objects .
A second level application of our detection method revealed that most of these are composed of smaller subgroups , with sizes of about 100 pc .