Nobuko Imai (今井 信子 Imai Nobuko, born March 18, 1943 in Tokyo), is a Japanese classical violist with an extensive career as soloist and chamber musician. Since 1988 she plays an Andrea Guarneri of 1690. Imai began her training at Tokyo's Toho Gakuen School of Music and soon after went to the United States where she studied at the Juilliard School and Yale University. She won the Young Concert Artists International Auditions in 1967 and won highest prize at both the Geneva International Music Competition and ARD International Music Competition at Munich. She has worked in chamber music projects with such artists as Martha Argerich, Kyung-Wha Chung, Heinz Holliger, Mischa Maisky, Midori, Murray Perahia, Gidon Kremer, Yo Yo Ma, Itzhak Perlman, András Schiff, Isaac Stern and Pinchas Zukerman, and appeared with the Berlin Philharmonic Orchestra, Royal Concertgebouw Orchestra, Vienna Symphony Orchestra, Royal Stockholm Philharmonic Orchestra, London Symphony Orchestra, the BBC Symphony Orchestra, Boston Symphony Orchestra, and Chicago Symphony Orchestra. She is a former member of the Vermeer Quartet and is the founder and a member of the Michaelangelo Quartet with Stephan Picard, Mihaela Martin and Frans Helmerson. For young musicians from Japan and the Netherlands, she founded the East West Baroque Academy. Her discography includes more than 30 releases on labels such as BIS, Chandos, DG, EMI, Hyperion, and Philips. She has been a recipient of numerous awards including the Avon Arts Award (1993), Japan's Suntory Music Award (1995) and Mainichi Award of Arts (1996). Toru Takemitsu composed for her a Viola Concerto A String around Autumn in 1989. She taught as a Professor at the Detmold Academy of Music from 1983 to 2003, and currently teaches at the Conservatories of Amsterdam and Geneva, and at Conservatoire Supérieur et Académie de Musique Tibor Varga in Sion.