Jonas Algirdas Antanaitis (19 August 1921 – 7 September 2018)[1] was a Lithuanian politician who was a long-term member of the Seimas.
Antanaitis was born in Rimšiniai village, Pakruojis district, Lithuania on 19 August 1921. He studied engineering at Vytautas Magnus University.[2]
After the Soviet Union occupied and annexed Lithuania, Antanaitis was a member of the resistance. He was arrested in 1944 and deported to Siberia. He returned to Lithuania in 1954, working as an engineer.[3]
In 1995, Antanaitis became a member of the Sixth Seimas through the electoral list of the Social Democratic Party of Lithuania.