Baddeley (or Baddely) is a surname, and may refer to:
- Aaron Baddeley, American/Australian golfer
- Alan Baddeley, English professor of psychology
- Angela Baddeley, English actress
- Gavin Baddeley, English reverend and journalist
- Herbert Baddeley, English tennis player
- Hermione Baddeley, British actress
- Jack Baddeley, Australian politician
- John Baddely, British voice actor
- John F. Baddeley, British scholar and journalist
- Lee Baddeley, Welsh footballer
- M. J. B. Baddeley, English guidebook writer
- Robert Baddeley, English actor
- Sophia Baddeley, English actress
- Steve Baddeley, English badminton player
- Thomas Baddeley (priest)
- Tom Baddeley
- Wilfred Baddeley, English tennis player
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