Marcin Knackfus

Marcin Knackfus
Bornc.1740
Diedc.1821
NationalityPolish-Lithuanian
Other namesMartynas Knakfusas
OccupationArchitect
Known forIntroducing Neoclassical architecture to Lithuania

Marcin Knackfus (Lithuanian: Martynas Knakfusas; c.1740 – c.1821), was an architect, professor, and military captain from the Polish–Lithuanian Commonwealth.

He was first person to introduce Neoclassical architecture in Lithuania. He designed several important buildings in Vilnius, the capital and largest city of Lithuania.