Dynkin (Russian: Дынкин) is a Russian masculine surname, its feminine counterpart is Dynkina. It may refer to the following notable people: Aleksandr Dynkin (born 1948), Russian economist Eugene Dynkin (1924–2014), Soviet and American mathematician known for Dynkin diagram Coxeter–Dynkin diagram Dynkin system Dynkin's formula Doob–Dynkin lemma Dynkin index