Opper may refer to:
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Bernard Opper (1915–2000), American basketball player
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Clarence V. Opper (1897–1964), United States Tax Court judge
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Don Keith Opper
Don Keith Opper (born June 12, 1949) is an American actor, writer, and producer who has starred in film and on television. He is best known for his role as Charlie McFadden in the 1986 science fiction film '' Critters'' and each of the three se ...
(born 1949), American actor, writer, and producer
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Frederick Burr Opper (1857–1937), American cartoonist
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Niko Opper (born 1992), German footballer
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