A letterhead is the heading at the top of a sheet of letter paper, usually consisting of a name and an address, and for corporate use, their Corporate design. It can also refer to a piece of letter paper imprinted with this heading.

Letterheads often include design features such as a background and a logo and are used as templates for printed letters. The templates can be saved in .dot or.dotx (Microsoft Word) format but can also be in image format.