Banerjee (Bengali: ব্যানার্জি Bênarji) or Bandyopadhyay (Bengali: বন্দ্যোপাধ্যায় Bôndopaddhae) is a prevalent Brahmin surname in the Bengal region of India. The name is also spelt Bannerjee, Banerji, Bandopadhyaya by different families.
Banerjees are Kulin Brahmins, which were traditionally considered the highest class in Bengal (along with Mukherjees, Chatterjees and Gangulis). They are descendents of the Brahmin Bhattanarayana (originally from Uttar Pradesh) and members of the Sandilya gotra[1][2].