The Weir is a play written by Conor McPherson in 1997. It was first produced at The Royal Court Theatre Upstairs in London, England, on 4 July 1997. It first appeared on Broadway at the Walter Kerr Theatre on 1 April 1999. It has since been performed in Toronto, Dublin, Belfast, Boston, Philadelphia, Pittsburgh, Los Angeles, Chicago, Buffalo, Washington, D.C. and San Jose.[1]