"Sing a Song of Sixpence" is a well-known English nursery rhyme, perhaps originating in the 18th century. It is also listed in the Roud folk song index as number 13191.

A common modern version is:

The final line of the fourth verse is sometimes slightly varied, with nose pecked or nipped off. One of the following additional verses is often added to moderate the ending:

or:

The rhyme's ultimate origins are uncertain. References have been inferred in Shakespeare's Twelfth Night (c. 1602), (Act II, Scene iii), where Sir Toby Belch tells a clown: "Come on; there is sixpence for you: let's have a song" and in Beaumont and Fletcher's Bonduca (1614), which contains the line "Whoa, here's a stir now! Sing a song o' sixpence!"

In the past it has often been attributed to George Steevens (1736–1800), who used it in a pun at the expense of Poet Laureate Henry James Pye (1745–1813) in 1790, but the first verse had already appeared in print in Tommy Thumb's Pretty Song Book, published in London around 1744, in the form: