Christian Adolf Hermann Löhlein (26 May 1847 in Coburg – 25 November 1901) was a German obstetrician and gynecologist.
In 1870, he obtained his medical doctorate following studies at the universities of Jena and Berlin.
Afterwards he spent several years at Berlin as an assistant in the clinic of Eduard Arnold Martin (1809–1875).
From 1875 to 1888, he was a lecturer in obstetrics and gynecology in Berlin, followed by a professorship at the University of Giessen.
At Giessen he was also editor of the Gynäkologische Tagesfragen (Gynecological issues of the day).