Amazing Nurse Nanako (菜々子解体診書, Nanako Kaitai Shinsho) is an anime OVA series released in Japan. There were 6 episodes. It was released between July 2000 and January 2001 on 3 DVDs in the United States through Geneon, each containing 2 episodes per volume. Follwing the closure of Geneon USA, Media Blasters acquired the license and will release the series on Blu-ray in 2025.

The series details the life and history of Nanako Shichigusa, a 16-year-old who works as a maid (not nurse as the title might imply) in the hospital of Dr. Kyogi Ogami, the male lead. Nanako is a classic ditzy slapstick protagonist who tends to accidentally break things and do everything wrong. Ogami treats her frequently in a cruel or heartless manner—threatening her, yelling at her and even subjecting her to physical abuse—yet at the climax of every episode he comes through to rescue her from whatever predicament she got herself into. Much of the series revolves around the relationship between Nanako and Ogami—his mean veneer, her faith in him, and how he alternates between the evil mad scientist archetype and the knight in shining armor archetype.

As the series progresses we are gradually revealed the history between Nanako and Ogami's family and given a reason why the two are so tightly knit together, as well as why the title refers to Nanako as a "nurse". A minor supporting cast is introduced, though Nanako and Ogami are clearly the leads. The plot incorporates the American military, the Catholic Church and outlandish science fiction experiments, with these elements progressed mostly in the lead episode and the last two episodes. The middle episodes 2-4 feature mostly unrelated one-shot plots, though minor progress is made in each episode regarding the history between Nanako and Ogami's family.