Blatnik is a surname. Notable people with the surname include:
Al Blatnik (1923–2011), American football and basketball coach Andrej Blatnik (born 1963), Slovene writer Gregor Blatnik (born 1972), Slovenian retired international footballer John Blatnik (1911–1991), United States Congressman from Minnesota Johnny Blatnik (1921–2004), American professional baseball outfielder Tatiana Blatnik, birth name of Princess Tatiana of Greece and Denmark (born 1980) Thais Blatnik (1919–2015), American journalist
See also
Blahnik Blatnick