Senior Citizens' Day may refer to:
Senior Citizen's Day, a public holiday in Palau National Culture and Senior Citizens Day, a public holiday in Kiribati Senior Citizens' Day, a minor observance in Taiwan falling on Double Ninth Day National Senior Citizens Day, a minor observance in the United States International Day of Older Persons, formerly the International Day of the Elderly, a United Nations observance German Senior Citizens' Day, an annual conference on aging and the elderly
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