Sebastian Baczkiewicz (born 1962, Hammersmith, London) is an English writer.
Bacziewicz trained as an actor at The Drama Centre in London. He was the BBC's first writer in residence in 2000.
Author of a number of episodes of Holby City, Bacziewicz has written a range of plays for BBC Radio including adaptations of Les Miserables and The Count of Monte Cristo and seven series of Pilgrim, starring Paul Hilton as William Palmer, the immortal title character.
His stage plays include The Lives of the Saints, Hello Paris, The Man Who Shot the Tiger and Dancing under the Bridge.
In 2004, he wrote half of a six-part series for BBC Radio 4 using characters from Arthurian legend.
In 2012, his radio drama Pilgrim was nominated for the Prix Italia and awarded silver at the Prix Europa.