Marilyn Appl Walker (born Marilyn Jay Appl, June 13, 1940, Garden City, Kansas, U.S.A.), American primary school teacher, real estate sales professional, and poet actively writing and publishing haiku since 2002. She has received awards in contests including Genkissu Spirits Up (Hekinan, Japan), the Haiku Society of America’s Gerald Brady senryu and Harold Henderson haiku competitions, the Kaji Aso Studio International Contest, the Penumbra Poetry & Haiku Contest of the Tallahassee Writers’ Association, the Vancouver Cherry Blossom Festival, Yuki Teikei Haiku Society contests, the Snapshots Haiku Calendar Competition, and the Pumpkin Festival Contest (Croatia), and in publications such as Modern Haiku, The Heron's Nest, and Sonic Boom. Her haiku have been anthologized frequently, including in ten of the best-of-year Red Moon anthologies. Walker cofounded the Madison, Georgia, haiku group and has served as mentor and facilitator for the group from 2016–2021. She is the author of the haiku collection Listening to the Sky (2015) and resides in Madison, Georgia.