Brigadier Lakhbinder Singh 'Tony' Lidder (26 June 1969 – 8 December 2021) was an Indian Army officer. He was the Defence Assistant to the Chief of Defence Staff (CDS) of the Indian Armed Forces General Bipin Rawat. He died in the 2021 Indian Air Force Mil Mi-17 crash along with the CDS and his wife, and 11 officers and defence personnel from the Indian Army and Indian Air Force.