Born January 8, 1951 in Oakland, California, Karen Tei Yamashita is a Japanese American writer and Associate Professor of Literature at University of California, Santa Cruz, where she teaches creative writing and Asian American literature. Her works, several of which contain elements of magic realism, include novels I Hotel (2010), Circle K Cycles (2001), Tropic of Orange (1997), Brazil-Maru (1992), and Through the Arc of the Rain Forest (1990). Tei Yamashita's novels emphasize the absolute necessity of polyglot, multicultural communities in an increasingly globalized age, even as they destabilize orthodox notions of borders and national/ethnic identity.

She has also written a number of plays, including Hannah Kusoh, Noh Bozos and O-Men which was produced by the Asian American theatre group, East West Players.

Yamashita is a finalist for the 2010 National Book Award for I Hotel.