Zigmas Jukna (July 13, 1935 – October 7, 1980) was a Lithuanian rower who competed for the Soviet Union in the 1960 Summer Olympics, in the 1964 Summer Olympics, and in the 1968 Summer Olympics.
In 1960 he was a crew member of the Soviet boat which won the silver medal in the coxed pairs event.
Fours years later he finished fifth with the Soviet boat in the eights competition.
At the 1968 Games he was part of the Soviet boat which won the bronze medal in the eights event.