... The classification of a large database of stellar spectra, which would be a Herculean task for human classifiers if done visually, is an ideal problem for the ANN technique, which can handle such problems without manual intervention. ... We have implemented ANN to classify stellar spectra from large spectral databases. We present here the Multilayer Back Propagation Network (MBPN), which is used to classify stellar spectra obtained in the optical and ultraviolet regions. ...