David Barry (born 30 April 1943) is a Welsh actor. He is best known for his role as Frankie Abbott, (the gum-chewing mother's boy who was convinced he was extremely tough), in the LWT sitcom Please Sir! and the spin-off series The Fenn Street Gang,
He also appeared in two TV spin-off movies - Please Sir! (1971) and George and Mildred (1980).
His first broadcast script was written for The Fenn Street Gang and he wrote many episodes of Thames TV's Keep it in the Family.
In 2016, Barry is reprising the role of Frankie Abbott in his own play A Day in the Lives of Frankie Abbott.
Barry is also a novelist. His police thriller Each man kills, set in Swansea, was published in 2002, to be followed by Willie the Actor in 2008. His autobiography was entitled Flashback. He has also written a children's book, The Ice Cream Time Machine. He currently lives in Tunbridge Wells, Kent.