
Mayumi Nagamine, played by Shinobu Nakayama, is a recurring character in the Gamera film series.
Nagamine is a ornithologist who first appeared in the 1995 film Gamera: Guardian of the Universe. She also appeared in Gamera 3: The Awakening of Iris. She is intrigued by Gamera, and forms a partnership with Asagi Kusanagi due to the latter's past experiences with the monster.