Guido

 has several meanings pertinent to the Doctor Who universe and the real world. They are listed below in alphabetical order by surname. If no surname is available, alphabetization occurs by the disambiguation term — that is, the bit between the parentheses in a title like Waitress (Random Shoes).

As only name

 * Guido (The Ghosts of N-Space) (AUDIO: The Ghosts of N-Space)
 * Guido (Hidden Persuaders) (AUDIO: Hidden Persuaders)
 * Guido (The Vampires of Venice) (TV: The Vampires of Venice)

As first name

 * Guido Fawkes, also known as Guy Fawkes (PROSE: The Plotters, GAME: The Gunpowder Plot)

Production

 * Guido Cerasulo, who was line producer on TV: The Fires of Pompeii