Indigenous Peoples' Day may refer to:

• International Day of the World's Indigenous Peoples, a United Nations event recognised as a public holiday in various countries observed annually on 9 August
• Indigenous Peoples' Day (United States), a day recognizing Indigenous Peoples in the United States, observed annually on the second Monday in October
• National Indigenous Peoples Day, a day recognizing First Nations in Canada, observed annually on 21 June
• Indigenous Peoples Day (Brazil), annual celebration honouring the indigenous peoples of Brazil, observed annually on April 19