Kieran Patrick Kelly (16 March 1930 – 2001) was an Irish vagrant, convicted murderer, and suspected serial killer.

There he married, had a number of children, and worked in the construction industry, before the break-up of his marriage and his growing alcoholism led to his becoming homeless.

In June 1984, Kelly was convicted of the 1983 manslaughter of William Boyd, and the murder of another homeless man in 1975, Hector Fisher.

[4] These accusations led to then Metropolitan Chief of Police, Sir Bernard Hogan Howe, to promise to undertake an investigation into the claims.

[7] In 2020, Irish broadcaster RTÉ released an eight-part Doc on One documentary series, The Nobody Zone, which explored Kelly's life and attempted to ascertain the truth behind his claims.