Tretiak
Tretiak is a surname of Slavic origin. It is derived from the word tretiy, meaning "third" in Russian, and is often connected with a designation for a third son or a third generation in a family. The name is found across Russia, Ukraine, Belarus, and other countries of the former Soviet Union, with variant transliterations including Tretyak and Tretiak.
Notable people with the surname include Vladislav Tretiak (born 1952), a former ice hockey goaltender for CSKA
The surname Tretiak may also appear in unrelated contexts, but it is primarily recognized as a family