Septimus Winner (11 May 1827 – 22 November 1902) was an American songwriter of the 19th century. He used his own name, and also the pseudonyms Alice Hawthorne, Percy Guyer, Mark Mason, Apsley Street, and Paul Stenton. He was also a teacher, performer, and music publisher.
Winner was born in Philadelphia, Pennsylvania, the seventh child to Joseph E. Winner (an instrument maker specializing in violins) and wife Mary Ann. Mary Ann Winner was a relative of Nathaniel Hawthorne, hence Septimus' use of the Hawthorne name as part of his pseudonym Alice Hawthorne.
Winner attended Philadelphia Central High School. Although largely self-taught in the area of music, he did take lessons from Leopold Meignen around 1853, but by that time he was already an established instrumental teacher, and performed locally with various ensembles.
From around 1845 to 1854, Septimus Winner partnered with his brother Joseph Eastburn Winner (1837–1918) as music publishers. Septimus continued in the business with various partners and names until 1902.