The dipole moment of 1:1 hydrogen bonded complexes of phenols and substituted phenols with benzaldehyde were determined from dielectric measurements at a temperature of 308.16 K. The dipole moment of the complex (mu(ab)), molar polarisation (P-ab), interaction dipole moment (Deltamu) for all the ternary systems were calculated for most favourable consideration predicted thermodynamically. The results indicate that complexation is predominantly due to polarization as well as electrostatic interaction.