letterhead

2. The paper a company uses for its official letters, printed with its name and address.

She asked the office to order more letterhead for the new staff.

3. A line at the top of a page that shows the title or name of a section.

Each chapter began with a letterhead naming the topic.

4. The top part of a website or document that shows the organization's name.

The letterhead of the newsletter displayed the club's name in bold.