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Nobuyo Oyama 大山 のぶ代 (born October 16, 1933, Shibuya City, Tokyo, Japan) is a Japanese voice actress (seiyū) who voiced Doraemon in the 1979 anime. She was the voice actor of Doraemon for 1787 episodes, lasting 26 years from 1979 to 2005, including 24 movies. Wasabi Mizuta replaced her role in the 2005 anime.

In 2001, Oyama was diagnosed with rectal cancer, and also found out that she had a malignant tumor when it was removed by surgery. However, Oyama never stopped voicing Doraemon, in fact, she brought the necessary equipment into the hospital so she could voice Doraemon even in her hospital bed. She at first requested to step down from Doraemon's role immediately, but after some discussions, decided to hang around with the main crew for a few more years until they all stepped down in 2005.

After retiring from Doraemon, she continued to voice various characters, the most famous being Monokuma from Dangaronpa. She also received various awards with her work in Doraemon, along with Noriko Ohara. They were still friends even after 2005. She has also written several books and an autobiographical essay about her life and her time in Doraemon.

Nobuyo Oyama was diagnosed with dementia in 2012. Her condition has reportedly gotten worse.

Characters Voiced[]

1979 Anime[]

Songs Sung[]


  • Nobuyo Ōyama is the oldest voice actress among the 1979 anime main cast.
  • She was married to Sunagawa Keisuke until his death in 2017.