Lakshman Kadirgamar Institute of International Relations and Strategic Studies (LKIIRSS) is a Sri Lankan research institute (or think tank) in the area of international affairs. Inaugurated on 10 August 2006 it is named after Lakshman Kadirgamar a former Minister of Foreign Affairs. Its current Director-General is C.A.N. Perera. The Institute functions under the Ministry of Foreign Affairs, Government of Sri Lanka and its headquarters have been the Lighthouse, in Cinnamon Gardens, Colombo.
Under the Sri Lanka Institute of Strategic Studies (Amendment) Act No. 32 of 2006 the Bandaranaike International Diplomatic Training Institute was vested in the LKIIRSS and is deemed to function as the training arm of the Institute.
The website is 
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