Christian August Voigt (21 August 1808 – 10 February 1890) was an Austrian anatomist born in Brody, Galicia.
He studied medicine in Vienna, receiving his doctorate in 1841 with a dissertation titled, De systemate Intermedio vasorum eiusque radicibus.
In Vienna, he was influenced by the work of anatomist Christian Joseph Berres (1796-1844).
From 1847 to 1850, he was a professor at the surgical-medical college in Laibach, afterwards teaching classes in Lemberg (1850–54), Krakow (1854–61) and Vienna (1861–78), where he was a professor of anatomy and histology.
Voigt was a member of the Vienna Academy of Sciences.Voigt is remembered for his anatomical investigations of the hair and skin.
His name is associated with "Voigt's line", a pigmentary demarcation line that sometimes affects dark-skinned individuals.
It is described as a dorsoventral line of pigmentation occurring symmetrically and bilaterally for about ten centimeters along the lateral edge of the biceps.