Denis Smalley has received awards at the following contests:
- Concours international de musique électroacoustique de Bourges, Bourges (Cher, France): 1977, 1983
- Fylkingen Electronic Music Competition, Stockholm (Sweden): 1975
- NEWCOMP International Computer Music Competition, Boston (Massachusetts, USA): 1984
- Prix Ars Electronica, Linz (Austria): 1988, 1992