Heritage Day may refer to:
*
Heritage Day (Alberta), a holiday in Alberta, Canada
* Nova Scotia Heritage Day, a holiday in Nova Scotia, Canada
* Yukon Heritage Day, a holiday in Yukon, Canada
* China's Cultural Heritage Day, a holiday in China
* European Heritage Days, a holiday in various locations in Europe
* Finnish Swedish Heritage Day, a flag day in Finland
* Heritage Day (South Africa), a holiday in South Africa
* Native American Heritage Day, a holiday in the United States
* Heritage Day, a holiday in Easton, Pennsylvania, United States
* Heritage Open Days, a weekend in the United Kingdom
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