How can I find my Apple ID on my iPad?
The first option should be the most reliable:


Open Settings.app, scroll down and tap on "iTunes &amp; App Stores". The Apple ID that the device is currently signed into will be at the top of the screen next to "Apple ID".


Alternate methods (only on iOS 5 or newer):


Settings.app > iCloud (under "Account")
Settings.app > Messages > Send &amp; Receive At (under "Apple ID")
Settings.app > Facetime (under "Apple ID")