Weedflower is a 2006 American children's historical novel by Cynthia Kadohata, the author of the award-winning Kira-Kira. The cover photography of the first edition is by Kamil Vojnar. The story is set in the United States during World War II and told from the perspective of 12-year-old Japanese-American Sumiko. A 6.5-hour-long audiobook version of Weedflower, read by Kimberly Farr, has been published.

Cynthia Kadohata is a Japanese American children's writer best known for her young adult novel Kira-Kira which won the Newbery Medal in 2005. She won the National Book Award for Young People's Literature in 2013 for The Thing About Luck.