Jan Niesluchowski (1851, Minsk – 1897, Minsk), better known by his pen name Janka Lucyna (Belarusian: ???? ??????, Yanka Luchyna), was a Belarusian poet who wrote in Belarusian, Polish, and Russian.
A son of a minor government official, Niesluchowski graduated from Saint Petersburg Institute of Technology and worked as a railway engineer.
Because of a leg disease he needed crutches to walk.
A collection of his Belarusian poems and translations, Viazanka (A Bundle) was published in 1903, several years after his death, earning him a place among the founders of the modern Belarusian literature.