Sri Lanka officially does not have a role for a national security advisor.
However, President Ranil Wickremasinghe in 2022 appointed former Cabinet Minister of Law and Order Sagala Ratnayaka as a Presidential Advisor on National Security.
[1] The President's Media Unit[2] of the Presidential Secretariat and several other government departments stylised as NSA,[3] as did the White House.
[4] The NSA does not hold an ex-officio seat in the National Security Council as it is not a codified position.