Rainy Lake 17B

{{Use Canadian English|date=January 2023}}

{{Infobox settlement

| name = Rainy Lake 17B

| official_name = Rainy Lake Indian Reserve No. 17B

| settlement_type = Indian reserve

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| pushpin_map = Canada Ontario

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| pushpin_mapsize = 200

| coordinates = {{coord|48|53|N|93|45|W|region:CA-ON|display=inline,title}}

| subdivision_type = Country

| subdivision_name = {{CAN}}

| subdivision_type1 = Province

| subdivision_name1 = {{ON}}

| subdivision_type2 = District

| subdivision_name2 = Rainy River

| subdivision_type3 = First Nation

| subdivision_name3 = Naicatchewenin

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| area_total_km2 =

| area_land_km2 = 9.81

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| population_footnotes = {{cite web |url=https://www12.statcan.gc.ca/census-recensement/2021/dp-pd/prof/details/page.cfm?Lang=E&SearchText=Rainy%20Lake%2017B&DGUIDlist=2021A00053559069&GENDERlist=1,2,3&STATISTIClist=1,4&HEADERlist=0 |title=Rainy Lake 17B census profile |publisher=Statistics Canada |work=2021 Census of Population |date=9 February 2022 |accessdate=5 May 2024}}

| population_total = 5

| population_as_of = 2021

| population_density_km2 = 0.5

| website = [http://naicatcheweninfirstnation.ca/ naicatcheweninfirstnation.ca]

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Rainy Lake 17B is a First Nations reserve in Rainy River District, Ontario. It is one of the reserves of the Naicatchewenin First Nation.