Mandy was a British comic book for girls, published weekly by DC Thomson from 21 January 1967 to 11 May 1991. The majority of the stories were serialized, typically into two or three pages per issue, over eight to twelve issues.

Mandy was published from 21 January 1967 (#1) to 11 May 1991 (#1,269), at which point it merged with Judy to become Mandy & Judy (also known as M&J). Mandy & Judy was published from 18 May 1991 (#1) until 24 May 1997 (#315), when it merged with Bunty (Bunty ceased publication completely in 2001).

Mandy annuals appeared from 1972 until 2007.

As was common in British comics of the period, it was standard practice to merge a comic into another one when it declined in sales. Typically, three stories or strips from the canceled comic would continue for a while in the surviving comic, and both titles would appear on the cover (one in a smaller font than the other) until the title of the cancelled comic was eventually dropped. Mandy was emblematic of this practice. In early 1983, Mandy absorbed Debbie (which itself had previously absorbed Spellbound). By the time Mandy merged with Judy in 1991, that title had previously absorbed Emma in 1979 and Tracy in 1985.

The comic's namesake Mandy stayed on the cover of the comic for its whole run with just a few changes along the way. Mandy was instantly recognisable with her bobbed dark hair; her clothes changed, but were always colourful and kept up with 1970s fashions. Accompanying her was her red-and-white dog Patch.

Each issue had a theme usually involving a play on words. The main picture set up the theme for the story. As well as the large picture there was one small panel in the corner; often this would be a contrast to the calmer/ happier main picture.

Some recurring theme elements of Mandy stories were:

Stories were generally moralistic in tone, with long-suffering heroines finally achieving happiness, while villainous relatives or girls who were liars, cheats, and bullies received their comeuppance.