Frank Hoyt Losey (1856–1925) was an American composer and conductor, best known for his contributions to the genre of popular music and musical theater in the late 19th and early 20th centuries. Born in Massachusetts, Losey became a prominent figure in the music scene, particularly noted for his work in vaudeville and operettas. Among his notable works are songs such as "The Girl Behind the Counter," "In the Old Village Church," and "The Sweetheart of Sigma Chi." His compositions often featured catchy melodies and engaging lyrics, appealing to a wide audience during his time. Losey's work contributed to the development of American popular music by blending elements of traditional folk tunes with the emerging styles of Tin Pan Alley. Losey’s impact extends beyond his compositions; he was also a skilled conductor and an influential figure in the performance of early American musical theater. His ability to connect with audiences through song helped shape the landscape of American entertainment in the early 20th century, paving the way for future generations of songwriters and composers.