Viktor Janka von Bulcs, often shortened to Viktor Janka (24 December 1837 in Vienna - 9 August 1890 in Budapest) was an Austrian military officer and botanist. He worked as the officer of a Cuirassier regiment (armoured cavalry soldiers) for the Imperial Austrian Army until 1870. He was then named curator of the botanical department of the Budapest National Museum.[1] He ceased working for the museum in 1889 and died one year later in the same city. Janka had collected many botanical specimens throughout the Austro-Hungarian Empire and his types are housed in the herbarium of the Babeș-Bolyai University in Romania.[2]
He discovered and described several plant species, including the Hungarian crocus (Colchicum hungaricum).[3]
The monotypic relict genus Jankaea, the orchid species Himantoglossum jankae and Chamaecytisus jankae are named after him.