Agatha may refer to:
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Agatha (given name), a feminine given name
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Agatha, Alberta, a locality in Canada
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List of storms named Agatha, tropical storms and hurricanes
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Operation Agatha, a 1946 British police and military operation in Mandatory Palestine
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''Agatha'' (genus), a genus of gastropods
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''Agatha'' (film), a 1979 film about Agatha Christie
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''Agatha All Along'' (miniseries), a 2024 television series based on the Marvel Comics character Agatha Harkness
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Agatha Award, for mystery and crime writers
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