Kerth is a surname. Notable people with the surname include:
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Al Kerth (1952–2002), St. Louis civic leader and public relations executive
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Anna Kerth
Anna Kerth (born 1 November 1980) is a Polish actress who starred in BBC Scotland's soap opera ''River City'' as Lena Krausky in 2006/2007. In Poland she is mostly known for being part of the main cast in the popular soap opera ''Na Wspólnej'' ...
(born 1980), Polish actress
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Werner Kerth (born 1966), Austrian ice hockey player
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German-language surnames