Surname
- David Theobald
- Densill Theobald
- Frederick Vincent Theobald (1868–1930), British entomologist
- Karl Theobald English stand-up comedian and actor
- Lewis Theobald, an 18th-century editor of Shakespeare
- Nichola Theobald
- Robert Alfred Theobald
- Robert Theobald (1929–1999), an economist and futurist
- William Theobald (1829–1908), a malacologist and naturalist
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