Globally, Амстіславський (Амстіславський ) is an extremely rare unknown gender first name. Much more prevalently, Амстіславський is the last name as well as the forename.
Amstislavsky
Олег, Ігор, Віталій, and Олександр
) is an extremely rare unknown gender first name. Much more prevalently, Амстіславський is the last name as well as the forename.