Grondin is a surname. Notable people with the surname include:
Christophe Grondin (1983-), naturalized Togolese football defender
David Grondin (1980-), French football player
Gilles Grondin (1943-2005), Canadian politician
Janvier Grondin (1947-), Canadian politician
Marc-André Grondin (1984-), Canadian actor
Mickaël Grondin (1987-), French goalkeeper
Pierre Grondin (1925-2006), Canadian cardiac surgeon
Willy Grondin (1974-), football goalkeeper
Jean Grondin (1955-), French-Canadian philosopher