Louis

* Characters:
** Louis Salvatore, the leader of the Salvatores in Fallout 2.
** Louise, the bartender of the Malamute Saloon in Redding in Fallout 2.
** Louis Pacion, the husband of Daisy Roe and father of Derek Pacion, mentioned in Fallout 3.
** Louis (Fallout 76), a person who lived with Anne, mentioned in Fallout 76.
** Louis (Top of the World), a worker at the Top of the World, mentioned in Fallout 76.
*** Louis's note, a note written by Louis, found at the Top of the World mezzanine in Fallout 76.
** Louisa, a woman who Tabitha wrote an apology to, mentioned in Fallout 76.
** Louis Daguerre, mentioned in the Fallout 76 update Wild Appalachia.
* Location:
** St. Louis, a city mostly destroyed during the Great War, now occupied by super mutants, in Fallout Tactics.
*** St. Louis (mission), the eighth mission in Fallout Tactics.
* Real-life people:
** Louis Armstrong, a jazz musician whose song "A Kiss to Build a Dream On" was used in the opening of Fallout 2.
** Louis Riley, a developer who worked at Bethesda Softworks as a quality assurance tester on Fallout 3 and Fallout: New Vegas.
** Louis Jordan, a musician whose recordings of the songs "Keep A Knockin" and "Salt Pork, West Virginia" were used in Fallout 4 and Fallout 76, respectively.