Carl-Axel "Cacka" Christiernsson (7 January 1898 – 27 October 1969) was a Swedish hurdler who competed at the 1920 and 1924 Summer Olympics.

Four years later he placed fourth in the 110 m final at the 1924 Olympic Games.

He also won the English AAA title in the 440 yards hurdles at the 1921 AAA Championships and finished second behind Henri Bernard in the 120 yards hurdles event at the same championships.

[4][5][6] From 1922 to 1926 he occasionally competed in the United States and set American indoor hurdles records over 60, 80 and 100 yards.

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