NPCs

Abbreviation for Non-Player Character.
NPCs are the characters that are created by Square-Enix and are controlled by a computer, not a real person. This generally includes monsters (i.e. the beasts that one fights), and Town/city residents and nomads (i.e. those NPCs with green names). 
This page lists all the NPCs that fall under the latter and their role in Final Fantasy XI.
For information on specific types of NPC's, see: 
*Armor Storer
*Allegiance Changer
*Assault Mission Giver
*Chocobo Renter
*Conquest Overseer
*Event Item Storer
*Guild Merchant
*Imperial Gate Guard
*Item Deliverer
*Map Marker
*Outpost Vendor
*Outpost Teleporters
*Past Event Watcher
*Regional Vendor
*Standard Merchant
*Tenshodo Merchant
*Title Changer
*Warp NPCs
*Weather Checker
Full List of the NPC categories:
:*Al Zahbi NPCs
:*Bastok NPCs
:*Cut Scene NPCs
:*Jeuno NPCs
:*Kazham NPCs
:*Mhaura NPCs
:*Nashmau NPCs
:*Norg NPCs
:*Outland NPCs
:*Party Associated NPCs
:*Rabao NPCs
:*Tavnazian Safehold NPCs
:*San d'Oria NPCs
:*Selbina NPCs
:*Special Event NPCs
:*Windurst NPCs
:*Wings of the Goddess
::*Southern San d'Oria (S)
::*Bastok Markets (S)
::*Windurst Waters (S)
See also Player Character and Adventuring Fellow Guide for further information, as well as Characters for background stories and Vanadiel history.
==Useful Tips==
For keyboard users, you may hit F8 to select the nearest NPC. Repeated uses of F8 will not change the targeted NPC unless another NPC becomes closer.
A useful macro command for selecting only NPCs is <stnpc>, used in place of <t>. It allows you to tab between targetable NPCs before finishing the execution of the macro.