Dangemannia is a genus of green algae in the family Oltmannsiellopsidaceae.
The genus name of Dangemannia is in honour of Pierre Jean Louis Dangeard (1895âÂÂ1970), who was a French botanist and Peter Kornmann (1907âÂÂ1993), a German botanist.
The genus was circumscribed by Thomas Friedl and Charles J. O'Kelly in Eur. J. Phycol. Vol.37 on page 382 in 2002.