Portier is a French surname meaning "porter". Notable people with the surname include:
Alexandre Portier (born 1990), French politician Anthony Portier (born 1982), Belgian footballer Michael Portier (1795–1859), American Roman Catholic bishop Bishop Portier House, Mobile, Alabama, United States Paul Portier (cinematographer), French cinematographer Paul Portier (physiologist) (1866 - 1962), French physiologist
See also Le Portier, a planned ward of the Principality of Monaco.