Oh My Rosemary () was one of the most popular Polish soldier songs from time of First World War and its aftermath conflicts like the Polish-Soviet War. It was found in nearly all of the contemporary song collections. There is no uniform text, as there were several variations.
The text of the song is a variation of older folksongs of unknown authorship, and there were records of the more common version being known at least in 1913. The most common version of the war time has been attributed to, or perhaps simply written down and published (in 1915), by the poet . Another poet credited with at least partial authorship (likely of the last three segments) was . Music has been composed by . All three of them were members of the Polish Legions in World War I.