Jamhuriya ta Uku ta Faransa ita ce tsarin mulkin da aka karbe a Faransa daga ranar 4 ga Satumban 1870, lokacin da Daular Faransa ta biyu ta ruguje a lokacin yakin Franco-Prussian, har zuwa 10 ga Yulin 1940, bayan faduwar Faransa a lokacin yakin duniya na biyu ya kai ga kafuwar kasar Faransa. Gwamnatin Vichy.Zamanin farko na jamhuriya ta Uku ya mamaye rikice-rikicen siyasa da ya haifar da yakin Franco-Prussian na 1870-1871, wanda jamhuriyar ta ci gaba da kai wa bayan faduwar sarki Napoleon na III a shekara ta 1870. Mummunan ramuwar gayya da 'yan Prussia suka yi bayan yakin ya haifar. a cikin asarar yankunan Faransa na Alsace (kiyaye Territoire de Belfort) da Lorraine (bangaren arewa maso gabas, watau sashen Moselle na yanzu), tashin hankali na zamantakewa, da kafaHukumar Paris .Gwamnonin farko na jamhuriya ta uku sun yi la’akari da sake kafa masarautu, amma an kasa magance rashin jituwa dangane da yanayin wannan masarauta da kuma wanda ya cancanta a kan karagar mulki.Sakamakon haka, jamhuriya ta uku, wadda tun farko aka yi hasashenta a matsayin gwamnati na wucin gadi, a maimakon haka ta zama tsarin mulkin Faransa na dindindin.Dokokin Kundin Tsarin Mulki na Faransa na 1875 sun bayyana abin da ke cikin Jamhuriya ta Uku.Ya kunshi Majalisar Wakilai da Majalisar Dattijai don kafa bangaren gwamnati da kuma shugaban kasa da zai zama shugaban kasa.Kiraye-kirayen sake kafa masarautan ya mamaye wa'adin shugabannin biyu na farko, Adolphe Thiers da Patrice de MacMahon, amma karuwar goyon bayan tsarin gwamnatin jamhuriya a tsakanin al'ummar Faransa da kuma jerin shugabannin jamhuriya a cikin shekarun 1880 a hankali sun yi watsi da hasashen. na maido da sarauta.Jamhuriya ta Uku ta kafa mallakar mallakar Faransa da dama, da suka haɗa da Indochina na Faransa, da Madagascar na Faransa, da Faransanci na Faransa, da kuma manyan yankuna a yammacin Afirka a lokacin yaƙin neman zaɓe na Afirka, dukkansu sun samu a cikin shekaru ashirin na ƙarshe na karni na 19.Shekarun farko na karni na 20, jam'iyyar Democratic Republican Alliance ce ta mamaye ta, wacce tun farko aka dauka a matsayin kawancen siyasa ta hagu, amma bayan lokaci ta zama babbar jam'iyyar dama ta tsakiya.Lokacin daga farkon yakin duniya na daya zuwa karshen shekarun 1930 ya nuna siyasa mai cike da rudani, tsakanin Democratic Republican Alliance da Radicals.Gwamnatin ta fadi kasa da shekara guda bayan barkewar yakin duniya na biyu, lokacin da sojojin Nazi suka mamaye yawancin kasar Faransa, kuma gwamnatocin da ke adawa da gwamnatin Charles de Gaulle na Free France (La France libre) da kasar Faransa Philippe Pétain suka maye gurbinsu.A cikin karni na 19 da na 20, daular mulkin mallaka ta Faransa ita ce daula ta biyu mafi girma a duniya a bayan daular Burtaniya.