Deckert is a surname. Notable people with the surname include:

• Günter Deckert (born 1940), far-right German political activist
• Günter Deckert (1950–2005), East German Nordic combined skier
• Josef Deckert (1843–1901), Austrian Catholic priest and anti-Semitic agitator
• Manfred Deckert (born 1961), East German ski jumper
• Ryan Deckert (born c. 1971), businessman and politician in Oregon, U.S.
• Tempany Deckert (born 1978), Australian actress and author

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