[Ameena]

Incoming email shows "House" after my first name instead of my last name?

[ZombieBerry]

The e-mail you received has been sent from someone who is saved as House in your address book.

Check your address book entries.

[tsac]

Or check the email service for this. If your receiving from one like Yahoo or the BIS service it may have the wrong name in a setting but the first place to look is as suggested by ZombieBerry