Andrew Samuel Duddy (25 August 1945 – 17 October 2007), known as Sammy, was a Northern Irish loyalist, having joined the Ulster Defence Association (UDA) shortly after its formation in 1971.

Duddy was born in Belfast, Northern Ireland, and grew up in a large Ulster Protestant family in the "Hammer" area of the city, located in the lower Shankill Road.

[1] He attended a local secondary modern school where he displayed a talent for writing, and would often compose valentines for his classmates in return for Dinky cars or pens.

Duddy went on to serve as the editor of UDA magazine Ulster for a time and in 1983 published a book of his poetry entitled Concrete Whirlpools of the Mind which received praise for its sensitive treatment of the problems for young working-class men drawn into violence.

[2] To avoid any possible implication in the Kincora Boys' Home scandal, Duddy ended the drag act in 1981 under orders from Tyrie, who also told him to grow a moustache and drop his voice.

From 1989 to 1990, he spent 11 months in jail on remand following his arrest during the John Stevens inquiry into collusion between loyalist paramilitaries and the Royal Ulster Constabulary and British Army.

[3] Duddy retired from active loyalism in the 1990s, but was recalled by the UPRG to help rebuild their image after the collapse of the Ulster Democratic Party and the split from Johnny Adair and John White.

That same year, shots were fired through his front door by masked gunmen; although he was unharmed, his seven-year-old pet chihuahua dog "Bambi" died within an hour after being hit by gunfire.