Lukash is a gender-neutral Slavic surname. It is also a Slavic form of the given name Luka, cf. "Lukáš". The surname Lukashenko is derived from it. Notable people with the name include:
Surname Konstantin Lukash Mykola Lukash (1919–1988), Ukrainian literary translator, theorist, and lexicographer Nikolai Lukash (1796–1868), Russian general and politician Olena Lukash (born 1976), Ukrainian jurist and politician
Given name Lukash Divish, Slovak-Russian volleyball player Lukash Dzekut-Malei (1888–1955), Belarusian Baptist pastor, national and independence activist, social figure, and translator of the Bible See also