La franca estis la oficiala lingvo thede colonyla ofkolonio [[FrenchFranca IndochinaHindoĉinio]], comprisingkiu modern-dayenhavis teritoriojn kiuj nuntempe estas [[VietnamVjetnamio]], [[LaosLaoso]],andkaj [[CambodiaKamboĝo]]. ItĜi continuesplue toestas beadministracia anlingvo administrativeen languageLaoso in Laos andkaj CambodiaKamboĝo, althoughkvankam itsties influenceinfluo hasmalpliiĝis waneden inla recentlastaj yearsjaroj.<ref>{{Cite news |url=https://www.nytimes.com/1993/10/16/style/IHT-french-declines-in-indochina-as-english-booms.html |title=French Declines in Indochina, as English Booms |last=Richardson |first=Michael |date=1616a de Octoberoktobro 1993 |work=[[International Herald Tribune]] |access-date=2018-11-18 |language=en }}</ref> InEn colonialkolonia VietnamVjetnamio, theĉefe elitesla primarilyelitoj spokeparolis Frenchla francan, whilekaj manymultaj servantsservistoj whokiuj workedlaboris inen Frenchfrancaj householdshejmoj spokeparois afrancan Frenchpiĝinon pidginkonata known askiel "[[Tây Bồi Pidgin French|Tây Bồi]]" (nownune extinctformortinta). AfterPost Frenchla rulefino endedde la Francia regado, [[SouthSuda VietnamVjetnamio]] continuedplue touzis usela Frenchfrancan inen administrationadministracio, education,edukado andkaj tradekomerco.<ref>{{cite web|url=http://www.worldwide.rs/vesti/58-role-english-vietnams-foreign-language-policy-brief-history|title=The role of English in Vietnam's foreign language policy: A brief history}}</ref> Since the [[Fall of Saigon]] and the opening of a unified Vietnam's economy, French has gradually been effectively displaced as the main foreign language of choice by English. French nevertheless maintains its colonial legacy by being spoken as a second language by the elderly and elite populations and is presently being revived in higher education and continues to be a diplomatic language in Vietnam. All three countries are official members of the OIF.<ref>{{Cite web|url=https://www.francophonie.org/IMG/pdf/som_xvi_membres_oif_vf.pdf|title=84 ÉTATS ET GOUVERNEMENTS|last=|first=|date=|website=|access-date=|archive-url=https://web.archive.org/web/20170605183945/https://www.francophonie.org/IMG/pdf/som_xvi_membres_oif_vf.pdf|archive-date=5 June 2017|url-status=dead}}</ref>
