Background: The porcelain-fused-to-metal systems have been extensively used in fixed partial dentures and still represents the gold standard. The present study was conducted to assess effect of liners on the shear bond strength of veneered zirconia block. Materials & Methods: 40 samples were fabricated from VITA zirconia discs. Samples were divided into 4 groups with 10 samples each. Group I is the control group, group II is lithium disilicate glass–ceramic liner group, group III is silicon dioxide based liner, and group IV is glass–ceramic interlayer group. SBS of samples was recorded using universal testing machine.Samples were further analyzed for fractographic behavior using SEM. Results: The mean shear bond strength in group I was 21.5 Mpa, in group II was 60.2 Mpa, in group III was 60.5 Mpa and in group IV was 34.2 Mpa. The difference was significant (P< 0.05). Conclusion: Themaximum shear bond strength was obtained for lithium disilicate liner. Maximum adhesive failures were found with lithium disilicate liner.