Lanthier may refer to:
Claude Lanthier (1933–2015), Canadian politician Jean-Marc Lanthier (ice hockey) (born 1963), professional ice hockey player from Quebec Jean-Marc Lanthier (Canadian Army officer), Canadian Army officer Jennifer Lanthier (born 1964), Canadian children's author and journalist Richard Lanthier, member of the Canadian rock band April Wine
See also Lantier (disambiguation)