The award honours a performer who has shown outstanding talent on the big screen in the past year and captured the attention of both the public and film industry.
The other contenders for the award are Kingsley Ben-Adir, Conrad Khan, Bukky Bakray, and Morfydd Clark.
Dirisu is known for roles in productions including Gangs of London.
He is currently shooting a lead role in Mr Malcolm’s List.
Upcoming releases include Mothering Sunday with Olivia Colman and Colin Firth, Tim Felhbaum’s Berlinale selection Tides and Silent Night with Kiera Knightley and Matthew Goode.