Marek Łbik (born 30 January 1958 in Poznań) is a Polish sprint canoeist who competed from the late 1970s to the late 1980s. Competing in two Summer Olympics, he won two medals with Marek Dopierała at Seoul in 1988 with a silver in the C-2 500 m event and a bronze in the C-2 1000 m event.
Łbik also won eight medals at the ICF Canoe Sprint World Championships with two golds (C-2 500 m: 1987, C-2 10000 m: 1986), four silvers (C-2 500 m: 1985, 1987; C-2 1000 m: 1987, 1989), and two bronzes (C-2 500 m: 1979, C-2 1000 m: 1985).
He is current chairman of Polish sports club Warta Poznań.