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Re, Norway, a former municipality in Vestfold county •
Re, Vestland, a village in Gloppen municipality, Vestland county, Norway •
Re, Piedmont, an Italian municipality •
Île de Ré, an island off the west coast of France •
Le Bois-Plage-en-Ré, a commune on that island •
Re di Anfo, a torrent (seasonal stream) in Italy • Re di Gianico, Re di Niardo, Re di Sellero, and Re di Tredenus, torrents in the
Val Camonica, Lombardy, Italy •
Réunion (ISO 3166-1 code), a French overseas department and island in the Indian Ocean •
Rewari Junction railway station (station code: RE), Haryana, India ==Science and technology==