Atsinanana

{{Infobox settlement

| official_name = Atsinanana Region

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| settlement_type = Region

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| image_map = Madagascar-Atsinanana-2023.svg

| mapsize = 180px

| map_caption = Location in Madagascar

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| subdivision_type = Country

| subdivision_name = {{MAD}}

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| seat_type = Capital

| seat = Toamasina

| government_footnotes = {{Cite web |url=https://beta.edbm.mg/fr/regions/atsinanana |title=EDBM |access-date=2021-05-09 |archive-date=2022-02-06 |archive-url=https://web.archive.org/web/20220206142944/https://beta.edbm.mg/fr/regions/atsinanana |url-status=dead }}

| government_type =

| leader_title = Governor

| leader_name = Richard Rafidison

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| area_footnotes = {{cite web

|url=http://documents.wfp.org/stellent/groups/public/documents/ena/wfp086538.pdf

|title=Madagascar: Profil des marchés pour les évaluations d'urgence de la sécurité alimentaire

|access-date=2008-03-01

|language=fr

|publisher=Programme Alimentaire Mondial, Service de l’Evaluation des besoins d’urgence (ODAN)

|author=Ralison, Eliane

|author2=Goossens, Frans

|url-status=dead

|archive-url=https://web.archive.org/web/20070926212702/http://documents.wfp.org/stellent/groups/public/documents/ena/wfp086538.pdf

|archive-date=2007-09-26

}}

| area_total_km2 = 21934

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| population_as_of = 2018

| population_footnotes = {{cite web|url=https://www.instat.mg/wp-content/uploads/Rapport-Prelim-2019_ver_final.pdf|title=Troisieme Recensement General de la Population et de L'Habitation (RGPH-3) Resultats Provisoires|publisher=Institut National de la Statistique Madagascar|access-date=May 23, 2020|archive-date=June 24, 2021|archive-url=https://web.archive.org/web/20210624195743/https://www.instat.mg/wp-content/uploads/Rapport-Prelim-2019_ver_final.pdf|url-status=dead}}

| population_note =

| population_total = 1484403

| population_density_km2 = auto

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| population_blank1_title = Ethnicities

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| population_blank2_title = Religions

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| timezone = EAT

| utc_offset = 3

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| blank_name_sec1 = HDI (2018)

| blank_info_sec1 = 0.541{{Cite web|url=https://hdi.globaldatalab.org/areadata/shdi/|title=Sub-national HDI - Area Database - Global Data Lab|website=hdi.globaldatalab.org|language=en|access-date=2018-09-13}}
{{color|#900|low}} · 5th of 22

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Atsinanana is a coastal region in eastern Madagascar. It borders Analanjirofo region in the north, Alaotra-Mangoro in the west, Vakinankaratra and Amoron'i Mania in the southwest, and Vatovavy in the south. The region contains over 285km of coastline, which includes many beaches and cultural heritage sites.{{Cite web|title=La Région Atsinanana à Madagascar|url=http://www.regions-francophones.org/actualite/2785/5606-la-region-atsinanana-a-madagascar.htm|access-date=2021-10-17|website=www.regions-francophones.org|language=fr}}

Atsinanana is known for its fish breeding and fishing near its ports, ore claims and mining activity, as well as its agriculture.

The capital of the region is Toamasina, and the population was 1,484,403 in 2018. The area of Atsinanana is {{convert|21934|km2|sqmi|0|abbr=on}}, almost exactly the same as its neighbor, Analanjirofo.{{cite web|url=https://www.instat.mg/wp-content/uploads/Rapport-Prelim-2019_ver_final.pdf|title=Troisieme Recensement General de la Population et de L'Habitation (RGPH-3) Resultats Provisoires|publisher=Institut National de la Statistique Madagascar|access-date=May 23, 2020|archive-date=June 24, 2021|archive-url=https://web.archive.org/web/20210624195743/https://www.instat.mg/wp-content/uploads/Rapport-Prelim-2019_ver_final.pdf|url-status=dead}}

The current governor of Atsinanana is Richard Théodore Rafidison.