"Frog Went a-Courtin'" is an English-language folk song. Its first known appearance is in Wedderburn's Complaynt of Scotland (1549) under the name "The Frog cam to the Myl dur", though this is in Scots rather than English. There is a reference in the London Company of Stationers' Register of 1580 to "A Moste Strange Weddinge of the Frogge and the Mouse." There are many texts of the ballad; however the oldest known musical version is in Thomas Ravenscroft's Melismata in 1611.
