* Oscar Wilde: Perhaps the most famous Irish wit, Wilde was known for his sharp, paradoxical, and often satirical plays like "The Importance of Being Earnest" and "Lady Windermere's Fan."
* George Bernard Shaw: A prolific playwright and social commentator, Shaw was known for his intelligent and witty plays that often tackled political and social issues. His most famous works include "Pygmalion" and "Major Barbara."
* Brendan Behan: A controversial but brilliant playwright and writer, Behan's plays like "The Hostage" and "The Quare Fellow" are darkly comic and often deal with Irish identity and political issues.
* Samuel Beckett: While not typically considered a "wit" in the same vein as Wilde or Shaw, Beckett's plays are often characterized by their absurdist humor and wry observations on human existence.
* Conor McPherson: A contemporary playwright, McPherson's plays are known for their dark humor and their exploration of the human condition.
These are just a few examples of the many talented and witty Irish playwrights who have graced the stage.