CLAMP is an all-female Japanese manga artist collective known for a diverse body of work that spans multiple genres and demographics, with a significant portion adapted into anime. Originating as a doujinshi (self-published) circle in the mid-1980s, the group initially comprised as many as eleven members before consolidating. CLAMP made its professional debut in 1989 with the series RG Veda and has since become one of the most commercially and critically acclaimed manga groups in Japan, with their works selling nearly 100 million copies internationally.

The group currently consists of four members, each with a distinct role in the creative process. Nanase Ohkawa, born in Osaka, serves as the leader and is primarily responsible for the scripts, story composition, and overall planning of all CLAMP projects. Mokona, born in Kyoto, is the lead artist, handling the main character designs, page layouts, and much of the finished artwork. Tsubaki Nekoi, also from Kyoto, specializes in drawing chibi (super-deformed) characters, manages the final inking and finishing touches, and is noted for her expertise in applying screen tones. Satsuki Igarashi, the youngest member, acts as a production and background assistant, focusing on the technical aspects of the artwork such as effect lines and overall page composition.

CLAMP's bibliography is extensive and notable for its thematic and character crossovers, with many series sharing a connected multiverse. Key original manga works include the fantasy epic RG Veda, the magical girl series Magic Knight Rayearth, the supernatural thriller Tokyo Babylon, and the apocalyptic X. Their most globally recognized work, Cardcaptor Sakura, began serialization in 1996 and was later followed by a sequel, Cardcaptor Sakura: Clear Card, which began in 2016. The group has also explored science fiction and romance with Chobits, and created the intertwined narratives of Tsubasa: Reservoir Chronicle and xxxHOLiC, both serialized concurrently starting in 2003. In addition to manga, CLAMP has provided character designs for original anime productions, most notably the series Code Geass.

The adaptation of their work into anime is a significant aspect of their career, with the collective’s leader, Nanase Ohkawa, frequently involved as a scriptwriter and series composition supervisor. Her credits include the television anime adaptations of Cardcaptor Sakura, Chobits, xxxHOLiC, and the 2018 Cardcaptor Sakura: Clear Card series. She also wrote the screenplays for the Cardcaptor Sakura films and served as the primary scriptwriter for the original anime series Blood-C. The group’s influence extends to original anime music videos, such as CLAMP in Wonderland and its sequel, CLAMP in Wonderland 2, which celebrate their various manga series.

A defining characteristic of CLAMP's artistic identity is their intricate and highly detailed art style, which often features elaborate costumes and what fans have described as "noodle people" due to the characters' elongated proportions. Their storytelling is marked by complex, interwoven narratives and a commitment to specific thematic principles, including the belief that a character must have a significant wish to fulfill and that death is an irreversible state from which no character can return. Their works frequently explore themes of love that transcend boundaries of gender, age, and even species, often presenting relationships with ambiguous or bittersweet resolutions. The group also pioneered an interconnected universe, establishing that many of their characters exist in a multiverse of parallel worlds, a concept central to the plot of Tsubasa: Reservoir Chronicle.

CLAMP holds a unique position in the manga industry for pioneering the professionalization of what began as a collaborative doujinshi circle. Unusually for a mainstream manga group, they operate without a large staff of assistants, with the four members handling the majority of the production work themselves. Their ability to simultaneously serialize multiple series across a wide range of magazines targeting different demographics, from shōjo to shōnen, demonstrates their versatility and significant influence within the industry.