Greta

 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, alphabetisation occurs by the disambiguation term — that is, the bit between the parentheses in a title like Waitress (Random Shoes).

As only name

 * Greta (The Beginning) (AUDIO: The Beginning)
 * Greta (Rendition) (TV: Rendition)

As first name

 * Greta Garbo (PROSE: The Year of Intelligent Tigers)
 * Greta Rodrigues (AUDIO: Bloodtide)
 * Greta Tod (AUDIO: The Beast of Orlok)