A columnist is someone who writes for publication in a series, creating an article that usually offers commentary and opinions.

Columns appear in newspapers, magazines and other publications, including blogs. They take the form of a short essay by a specific writer who offers a personal point of view. In some instances, a column has been written by a composite or a team, appearing under a pseudonym, or (in effect) a brand name. Some columnists appear on a daily or weekly basis and later reprint the same material in book collections.