Gerner is a surname of English and German origin. Notable people with the surname include:

Andreas Gerner (1698–1749), Danish naval officer Gebhard Gerner (1902–1991), Liechtenstein politician Henrik Gerner (1742–1787), Danish naval officer Henrik Gerner (bishop) (1629–1700), Danish Lutheran bishop Ingrid Hassler-Gerner (born 1947), Liechtenstein politician Kristian Gerner (1942–2026), Swedish historian, author, and academic Leo Gerner (1912–1981), Liechtenstein politician Maximilian Gerner (born 1998), German politician

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