Marcinkevičius is the masculine form of a Lithuanian surname. Its feminine forms are Marcinkevičienė (married woman or widow) and Marcinkevičiūtė (unmarried woman). Notable people with the surname include:
Justinas Marcinkevičius (1930-2011), Lithuanian poet and playwright Vilmantas Marcinkevičius (born 1969), Lithuanian painter
See also Marcinkiewicz Martinkevich Martsinkevich