Starfield:NPCs
From Starfield Wiki
NPC stands for "Non-Playable character". Which is any character in the game that you as the player can not control directly without intervention/mods/cheats. There are thousands of NPC's in any game, especially larger games such as Starfield, many of them do not have any names.
For a more detailed list of NPC's in Starfield please see this category page.