Fumiko Kometani (米谷ふみ子, Kometani Fumiko, born 1930 in Osaka, Japan) is a Japanese author and artist (painter) and a longtime resident of the United States. Kometani moved to the US in 1960 when she was working as an abstract painter, spending time at the MacDowell Colony in New Hampshire where she met her husband, Josh Greenfeld (now living in California). She changed her focus to writing when her developmentally disabled son Noah became too hard to handle when he was around the art supplies in her studio. Her older son, Karl Taro Greenfeld, is also a writer.