[4] He was a Minister of Foreign Affairs under Commander-in-Chief of Defence Services Min Aung Hlaing after the 2021 Myanmar coup d'état.

Wunna Maung Lwin was born in Thaton, Mon State on 30 May 1954.

Before he holds the current position, he served as Director-General of the Ministry of Border Affairs (Myanmar) from July 1998 to September 2000, Myanmar Ambassador to Israel from 2000 to 2001, France from 2001 to 2004, Belgium and EU from 2004 to 2007 and Permanent Representative to the United Nations in Geneva, Switzerland from 2007 to 2011.

[8][9] Wunna Maung Lwin is married to Lin Lin Tin, the youngest daughter of Thakhin Ba Tin, a member of the Dobama Asiayone and a cousin of Kyu Kyu Hla.

On December 11, 2023, the European Union imposed personal restrictions on Wunna Maung Lwin due to his role as a newly appointed member of the State Administration Council and former junta-appointed Foreign Minister.