Who Threw the Overalls in Mrs. Murphy's Chowder? is a popular song. It was written by George L. Giefer in 1898 and originally recorded by Edward M. Favor in 1901. It was later recorded by Bing Crosby in 1956.
The song describes an incident in which a pair of worn-out overalls are found in a batch of Mrs. Murphy's large pot of chowder. Tim Nolan, who discovered the overalls, immediately assumes it was a prank, and promises to inflict pain on "the mick that threw the overalls ... ". Mistress Murphy, upon realizing the ruckus, admits that she forgot to take the overalls out of the pot after she had been using it for laundry earlier in the day, at which point Nolan apologizes and the group puts music to his words and sing (the chorus).
The song has enjoyed some popularity with Irish-Americans and association with the Saint Patrick's Day holiday and is sometimes played during the holiday, sometimes edited to remove elements of the song that can be construed to disparage the Irish.