Horace Stanley Keats (20 July 1895 – 21 August 1945) was an English-born Australian composer, arranger, piano accompanist and conductor. As a composer he was most noted for his 115 songs, which caused an Australian academic to dub him "the Schubert of Australia" and others to call him "the poets' composer". He also wrote ballet music, film scores, choral works, incidental music and a musical.
Horace Keats was born in Mitcham, now in London, England but then part of Surrey, in 1895. He ran away to sea at age 13, and worked as a ship's pianist, having had only very few lessons as a child. He tried to enlist at the outbreak of World War I but was rejected for poor eyesight. He was accompanist for Nella Webb on her tour of America and the Pacific, and in 1915 settled in Sydney, having been persuaded by Peter Dawson, Ella Caspers and others to become their regular accompanist.
In 1917 he toured Australia and New Zealand providing the music for several films by D. W. Griffith. He was a conductor and orchestral pianist for several operas directed by Count Ercole Filippini.
He led a trio in the restaurant of Farmers department store 1920-23. The other members were John Farnsworth Hall and John Boatwright. Farmers founded the radio station 2FC in 1923, and Keats was a frequent broadcaster as conductor of its 17-member ensemble (which would later evolve into the Sydney Symphony Orchestra), and piano accompanist. From 1925 he worked for radio station 2BL.
In 1930 he went to England to work for the BBC, but returned after six months due to ill health. In 1932 in Perth, he joined the fledgling Australian Broadcasting Commission as Controller of Wireless Programmes, but was dismissed in 1933. He then worked as a freelance accompanist in Sydney, often with the ABC (which had taken over 2FC), an association that continued until his death in Sydney at age 50 in 1945, from a cerebral haemorrhage.