Old Stock Americans

Old Stock American
Colonial Stock, Pioneer Stock
Regions with significant populations
United States and Canada
Languages
Mainly American English, with minorities speaking Pennsylvania German, Jersey Dutch, Swedish, French, and Scottish Gaelic
Religion
Christianity (primarily Protestantism, with some Catholicism especially in Maryland)
Related ethnic groups
British, English, Irish, Welsh, Scots, Poles, Ulster-Scots, Old Stock Canadians, French Canadians, Pennsylvania German, New Netherlander, Afrikaners, Huguenots, Anglo-Celtic Australians, European New Zealanders, Anglo-Indians, British diaspora in Africa

Old Stock American (also known as Colonial Stock, Founding Stock, or Pioneer Stock) is a colloquial name for Americans who are descended from the original settlers of the Thirteen Colonies. Historically, Old Stock Americans have been mainly Protestants from Northwestern Europe whose ancestors emigrated to British America in the 17th and 18th centuries.

In the statistical terminology of the U.S. Census Bureau, Americans from the third-, fourth-, and fifth-generations are labelled "Old Stock" unless they are Afro-Americans, Asian Americans, or American Indians.