Documentation for JIRA 6.4 EAP. Not using this? See below:
(JIRA 6.3.x documentation | JIRA Cloud documentation | earlier versions of JIRA)

Title: Managing Users  
Author: admin Apr 17, 2009
Last Changed by: Marcus Silveira [Atlassian] Oct 30, 2014
Tiny Link: (useful for email) https://confluence.atlassian.com/x/nwESCw
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GreenHopper 4.1 (1)
    Page: Using Planning Board Modes to View Issues
JIRA 5.0 (3)
    Page: Viewing your System Information
    Page: Tips of the Trade
    Page: Managing Project Roles
Atlassian Guides (1)
    Page: Adding Users to your Atlassian Integrated Suite
Atlassian Cloud (formerly OnDemand) Documentation (3)
    Page: Managing collaborators
    Page: Setting up users with the version 1.x pricing
    Page: Restricted Functions in Cloud Applications
JIRA 6.4 EAP (24)
    Page: Managing your User Profile
    Page: Configuring JIRA Options
    Page: Using Hover Profile
    Page: Tips of the Trade
    Page: How do I assign issues to multiple users
    Page: JIRA 6.2 Upgrade Notes
    Page: JIRA 5.1 RC 3 Release Notes
    Page: JIRA 5.1 RC 1 Release Notes
    Page: JIRA 5.0.3 Release Notes
    Page: Managing Project Roles
    Page: Extend JIRA
    Page: Viewing your System Information
    Page: Can I store customer details, like company, address and contact information, in JIRA?
    Page: JIRA 5.1 EAP 2 Release Notes
    Page: Migrating Users between User Directories
    Page: JIRA 5.1 Upgrade Notes
    Page: Enabling Public Signup and CAPTCHA
    Page: Connecting to an Internal Directory with LDAP Authentication
    Page: Creating a Notification Scheme
    Page: JIRA 5.1 Release Notes
    Page: JIRA 5.1 Beta 1 Release Notes
    Page: JIRA 5.1 RC 2 Release Notes
    Page: JIRA 5.1 EAP 1 Release Notes
    Home page: JIRA Documentation
JIRA Service Desk (2)
    Page: Managing collaborators
    Page: Setting up users with the version 1.x pricing
JIRA 6.1 (1)
    Page: Managing Users
JIRA Agile 6.6 (1)
    Page: _Managing Users
GreenHopper 4.4 (1)
    Page: Using Planning Board Modes to View Issues
JIRA Service Desk 2.2 documentation (2)
    Page: Managing collaborators
    Page: Setting up users with the version 1.x pricing
JIRA Service Desk 2.1 documentation (2)
    Page: Managing collaborators
    Page: Setting up users with the version 1.x pricing
GreenHopper 6.2 (1)
    Page: _Managing Users
GreenHopper 4.2 (1)
    Page: Using Planning Board Modes to View Issues
Service Desk 1.2 Documentation (1)
    Page: Setting up JIRA Service Desk Users
GreenHopper 4.3 (1)
    Page: Using Planning Board Modes to View Issues
GreenHopper Archive (1)
    Page: _Managing Users
JIRA 5.1 (3)
    Page: Tips of the Trade
    Page: Managing Project Roles
    Page: Viewing your System Information
JIRA Knowledge Base (3)
    Page: Can JIRA be used for Client Management?
    Page: Limit/Restrict User's Project Access
    Page: Unable to Deactivate Users using Deactivate Feature in JIRA
Atlassian OnDemand Documentation (3)
    Page: Restricted Functions in Atlassian OnDemand
    Page: Setting up users with the version 1.x pricing
    Page: Managing collaborators
GreenHopper 4.0 (1)
    Page: Using Planning Board Modes to View Issues
JIRA 6.2 (1)
    Page: Managing Users
Hierarchy
Parent Page
    Page: User and Group Management
Labels
Global Labels (3)