Didier Hoyer (born 3 February 1961) is a French sprint canoer who competed from the early 1980s to the early 1990s. Competing in three Summer Olympics, he won two bronze medals in the C-2 1000 m event, earning them in 1984 and 1992.
Hoyer also won six medals at the ICF Canoe Sprint World Championships with four silvers (C-2 1000 m: 1989, 1991, 1993; C-2 10000 m: 1989) and two bronzes (C-1 10000 m: 1986, C-2 500 m: 1991).