Elsie Dinsmore is a children's book series written by Martha Finley (1828–1909) between 1867 and 1905. Of Finley's two girls' fiction series, the "Mildred Keith" books were more realistic and autobiographical in nature, while the "Elsie Dinsmore" books, which were better sellers, were more idealistic in plot. A revised and adapted version of the Elsie books was published in 1999.

The books take place on plantations in the American South, in the period before the American Civil War. Elsie is an eight-year-old girl who has been living with her paternal grandfather, his second wife (Elsie's step-grandmother), and their six children: Adelaide, Lora, Louise, Arthur, Walter, and Enna. Elsie's mother died soon after giving birth to her, and her father has been traveling in Europe. She is good friends with Rose Allison, with whom she studies the Bible. The first book begins as Elsie's father, Horace, returns from Europe and she goes to live with him. The developing story hinges on Elsie's attempts to gain her father's love while maintaining her Christian ethics and her refusal to turn in those who bully her.