Feliks Kołyszko alias Śmiałyński (Lithuanian: Feliksas Kolyška; 30 May 1837 in Vilnius – 19 February 1889 in Menton) was a Polish-Lithuanian participant of the 1863 January Uprising. Feliks (Feliksas) was the older brother of Bolesław Kołyszko (Lithuanian: Boleslovas Kolyška) a notable leader of the January Uprising that was aimed at the restoration of the Polish–Lithuanian Commonwealth.