Keiko Fukuyama, born September 7, 1961 in Tokyo, is a Japanese freelance artist and manga creator who has worked extensively across manga, light novel illustration, and anime production since the early 1980s. She made her debut in 1981 with the self-published work Fukuyama Jikkuvukku, followed by her first commercial manga release later that same year. As a child, she was an avid reader of manga, particularly the works of Osamu Tezuka, whose influence can be seen in her later projects. Early in her career, she worked as an assistant to renowned manga artist Rumiko Takahashi.

Fukuyama is known for a distinctive artistic style that employs traditional mediums such as felt pens and pencils to create vibrant, colorful images. Her visual approach is characterized by clean, linear drawings with stylized and charming figures, often described as kawaii. Her narratives frequently explore fantasy and science fiction genres, blending nostalgic atmosphere with gentle, heartwarming storytelling.

Throughout her career, Fukuyama has authored and illustrated a vast number of manga series and light novels. Notable original manga works include Tokyo Story, serialized in Animage from 1987 to 1992, Saigo-san's Happiness, serialized in Wings from 1987 to 1990, and Nenneko Princess of the Illusory Valley, serialized in Nakayoshi from 1994 to 1998. She also created the series Hinagiku Junshin Jogakuen, which ran in Monthly Comic Ryū from 2006 to 2010, and Otenki Koharu-chan, serialized in Manga Time Special from 2010 to 2012. In 2009, she produced Merumo-chan, a remake and homage to Osamu Tezuka original work The Magical Candy of Lilly, demonstrating her enduring connection to the medium foundational creators.

Her work has been adapted into anime on several occasions. In 1990, her original concept was used for the OVA Fukuyama Gekijō - Natsu no Himitsu, for which she is credited as the original creator. In 1992, she served as the original character designer for the OVA Apfelland Monogatari, also known as Apfel Land Story. Beyond her own creations, she contributed to the Pokémon media franchise, illustrating ending animations for the theatrical shorts Pikachu no Natsuyasumi in 1998 and Pichu to Pikachu in 2000. She also wrote and illustrated several Pokémon picture books and provided illustrations for the Pokémon Trading Card Game in 1999 and 2002.

Keiko Fukuyama holds a significant place in the industry as a versatile freelance artist who has successfully navigated multiple roles including manga author, illustrator, and anime character designer. Her long-running career, beginning in the early 1980s, and her work with major publishers such as Tokuma Shoten, Kodansha, and Shogakukan, attest to her lasting presence and contribution to Japanese comics and animation.