Worldwide, Коссаковський (Коссаковський ) is an extremely rare unknown gender first name. Much more prevalently, Коссаковський is the last name as well as the forename.
Kossakovskii, Kossakovsky, and Kossakowski
Леонід, Сергій, Даніель, Аркадій, Ромуальд, and Костянтин
) is an extremely rare unknown gender first name. Much more prevalently, Коссаковський is the last name as well as the forename.