Philip Rosseter (1568 – 5 May 1623) was an English composer and musician, as well as a theatrical manager. His family seems to have been from Somerset or Lincolnshire, he may have been employed with the Countess of Sussex by 1596, and he was living in London by 1598. In 1604 Rosseter was appointed a court lutenist for James I of England, a position he held until his death in 1623. Rosseter is best known for A Book of Ayres which was written with Thomas Campion and published in 1601. Some literary critics have held that Campion wrote the poems for Rosseter's songs; however, this seems not to be the case. It is likely that Campion was the author of the book's preface, which criticizes complex counterpoint and "intricate" harmonies that leave the words inaudible. The two men had a close professional and personal relationship; when Campion died in 1620, he had named Rosseter his sole heir.
Rosseter's lute songs are generally short, homophonic, with minimal repetition or word painting (imitating textual meanings through music), while at the same time being rich in musical invention. Rosseter's only other book was Lessons for Consort (1609) for a broken consort of bandora, cittern, lute, flute, and treble and bass viol, which contains arrangements of his own and others' music.
Rosseter was also involved in the Jacobean theatre. In 1609 he and Robert Keysar became shareholders in a company of boy actors, the Children of the Chapel. The company had lost their royal patronage in 1606 as a result of their satire of Jacobean court scandals, but Rosseter was permitted to restore their former title, the Children of the Queen's Revels, in 1610. Rosseter remained connected to the Jacobean court during this period, performing in February 1613 for George Chapman's Masque of the Middle Temple and Lincoln's Inn. In 1614, the Children of the Queen's Revels' lease for Whitefriars Theatre expired, and Rosseter obtained a license from King James to build a new theatre at Porter's Hall, near the Blackfriars Theatre. Boundary changes brought the site within the City of London, however, where the lord mayor and aldermen strongly objected to the establishment of the theater. After a controversial trial in which Lord Chief Justice Coke found for the London authorities, the nearly-completed playhouse was demolished in 1617. Rosseter made attempts to operate the boy actors, now known as the Children of the Late Queen's Revels, as a touring company, but he withdrew as a shareholder by 1620, and the company disbanded shortly afterwards.
- Campion, sig. A4v.
- Halliday, pp. 100, 422-3, 527.
- Campion, Thomas and Philip Rosseter. A booke of ayres, set foorth to be song to the lute, orpherian, and base violl (London, 1601), Early English Books Online (accessed 11 August 2013),  (subscription access).
- Greer, David. "Philip Rosseter", Grove Music Online, ed. L. Macy (accessed 16 October 2006), grovemusic.com (subscription access).
- Halliday, F. E. A Shakespeare Companion 1564-1964, Baltimore, Penguin, 1964.
- Harwood, Ian. "Philip Rosseter", Oxford Dictionary of National Biography (accessed 11 August 2013), www.oxforddnb.com (subscription access).
- Free scores by Philip Rosseter in the Choral Public Domain Library (ChoralWiki)
- Video of "When Laura smiles" by Philip Rosseter performed by Valeria Mignaco, soprano & Alfonso Marin, lute
- Philip Rosseter performed by lutist Brian Wright