Christian Luerssen (6 May 1843, Bremen – 28 June 1916) was a German botanist.
In 1872, at Leipzig, he graduated as a university teacher of botany, and was later appointed professor of botany at the Forest Academy at Neustadt-Eberswalde (1884).
[1] After his death, a portion of his botanical collection (including European pteridophytes) was donated by Otto Bjurling to the Swedish Museum of Natural History.
[2] Luerssen was the taxonomic authority of the family Sciadopityaceae (1877).
[3] He has a number of plant species named after him, such as Koeleria luerssenii (grass species) and Cassia luerssenii (family Fabaceae).