"Sweet and Low" is a poem by Alfred, Lord Tennyson. Written in 1849, Tennyson sent two versions of the poem to Emily Sellwood in November, asking her to select which one to include in the revised 1850 edition of The Princess, where it intercalates canto II and III.
Charles Kingsley in a review in Fraser's Magazine (September 1850) found the poem so exquisite that he quoted it in full, and it became, as did the other five "songs" inserted in 1850 edition of The Princess, a poem widely translated in Europe.
Joseph Barnby set the poem as a partsong in 1865.
The title has been reused used many times, notably by Benjamin Eisenstadt in 1957 for his artificial sweetener brand Sweet'n Low. Mary Higgins Clark's 1989 novel While My Pretty One Sleeps takes its title from the first stanza.
In the first issue of the comic Open Your Eyes by Levi Nunnink, part of the poem is included over an image on the final page.