Gamini Lakshman Peiris (Sinhala: ගාමීණි ලක්ෂ්මණ් පීරිස්, Tamil: காமினி லக்ஷ்மன் பீரிஸ்) (born 13 August 1946) is a Sri Lankan politician and academic. He was the Cabinet Minister of External Affairs and is a member of the Parliament of Sri Lanka from the National List. He was also the State Minister of Defense on the 18th of April 2022, serving until 11 July 2022. He previously served as the Minister of Education, Minister of Justice in previous Sri Lankan Governments. He belongs to the Sri Lanka Podujana Peramuna, serving as its chairperson.