A convenient, efficient and green synthesis of N-heteroaryl aminonaphthols has been developed by one-pot, three-component condensation of β-naphthol, heteroaryl amines and substituted benzaldehydes under solvent-free conditions at elevated temperature. The advantages of these reactions are simplicity of the reaction procedure, short reaction times, simple work-up, catalyst-free conditions and pure products in good to excellent yields.