Harry Dacre was the pen-name of Frank Dean (September 1857–16 July 1922),[1][2][3] a British songwriter best known for his composition "Daisy Bell (Bicycle Built For Two)".

He decided to make a career in songwriting, and used the pseudonyms Harry Dacre and Henry Decker (which some sources state was his birth name).

Claiming that the stress of constant songwriting was affecting his health, he emigrated to Australia, where he stayed for four years before returning to England and then leaving for America in 1891.

Supposedly, his friend William Jerome told him that if he had brought a tandem he would have had to pay double, inspiring Dacre to rewrite the words of his song to refer to a "bicycle built for two".

[3][4] Dacre returned to London, and in 1895 set up his own publishing house, Frank Dean and Co.[3] He continued to write successful songs, including "Katie O'Connor" (1891); "I Can't Think of Nuthin' Else But You, Lulu" (1896); and "I'll Be Your Sweetheart" (1899), which became a popular success performed by Lil Hawthorne.