Kate Louise Brown (May 8, 1857 – December 31, 1921) was a children's educator and author who wrote 17 works in a total of 41 publications, in addition to poems, songs, and magazine articles. She is best known for the books, The Plant Baby and Its Friends, Little People, Alice and Tom, and Stories in Songs.

Brown was born in Adams, Massachusetts and had her first poem published in print at age 9. She wrote many children's scientific novels, poems, and periodical articles, many of which surround nature and botany themes. For example, her book The Plant Baby and Its Friends, published in 1898, explains botany like the plant is a child. Brown believed in presenting advanced topics to children in an interesting way as a story, not in textbook form.

While she was most famous for her books, Brown also wrote poems for children ("Goddesses", "The Return", "Clappers", "The Christ Clappers") and music for kindergarten marching plays. Her poems were featured in children's textbooks for school.