The First Four Years is an autobiographical novel by Laura Ingalls Wilder, published in 1971 and commonly considered the last of nine books in the Little House series. The series had initially concluded at eight children's novels following Wilder to mature age and her marriage with Almanzo Wilder.

Laura Elizabeth Ingalls Wilder was an American writer. The Little House on the Prairie series of children's books, published between 1932 and 1943, were based on her childhood in a settler and pioneer family.