Marian Olson (born Marian Harlene Showalter, May 18, 1939, Bremerton, Washington, U.S.A.; died August 17, 2018, Santa Fe, New Mexico, U.S.A.), American college English professor, nonfiction writer, and poet. She published ten books of poetry, including four haiku collections, two books of tanka, and three of longer poetry. Olson resided in Santa Fe, N.M., from 1994.