Webmaster or Webmistress is a commonly used term that refers to the person or persons responsible for a specific website.

On a smaller site, the webmaster will typically be the owner, designer, developer and programmer in addition to writing the actual content. On larger sites the webmaster will act as a coordinator and overseer to the activities of other people working on the site and is usually an employee of the owner of the website, hence Webmaster can also be listed as an occupation.

Another, broader, definition of webmaster is a businessperson who uses online media to sell products and/or services. This broader definition of webmaster covers not just the technical aspects of overseeing website construction and maintenance but also management of content, advertising, marketing, and order fulfillment for the website.

The Webmaster's e-mail address often acts as the point of contact for a website, with webmaster@example.tld often being listed in the footer of each webpage within a website.