joseph stalins surname is a word on a play
Joseph Stalin's surname, "Stalin," is actually a pseudonym meaning "man of steel" in Russian; it is not his original last name. He was born as Ioseb Besarionis dze Jughashvili. The name "Stalin" itself, while evocative of strength due to its meaning, isn't known to be part of or a reference to a specific play.
However, your statement could suggest that the name "Stalin" might be used within a play metaphorically or symbolically to represent a character akin to Stalin's historical persona or to invoke the connotations of strength and solidity that his chosen name implies. Playwrights could potentially use this to create a certain atmosphere or draw parallels with the historical figure of Joseph Stalin, his leadership, or his era in Soviet history.
If you are referring to a specific play that uses Stalin's name as a word or a character, additional context would be needed to provide a more precise answer.