Jimyōin Nobuko (持明院 陳子) was a Japanese noblewoman. She was the daughter of Jimyōin Motoie and she had Toyohito with Morisada. Toyohito would eventually become Emperor of Japan.
Jimyōin Nobuko was born into the Jimyōin clan as the daughter of Jimyōin Motoie, a branch of the Fujiwara clan. She thus may be called Fujiwara Nobuko in old texts.