Sir George Clement Martin MVO (11 September 1844 – 21 February 1916) was an English organist, who served at St Paul's Cathedral.

He was a composer, mostly of church music, which included a Te Deum in A, performed at the Thanksgiving Service held on the steps of the Cathedral in Queen Victoria's Diamond Jubilee year.

Martin transcribed Sir Edward Elgar's 1897 work "Imperial March" for organ, in which form it is still frequently played by many concert organists, often as an encore.

It is, in this form, possibly better known than in the original orchestral arrangement, which (outside England) is only occasionally performed - organist Simon Preston's 1964 recording on the organ of Westminster Abbey is one well-known version.

He was appointed a Member (4th class) of the Royal Victorian Order in the November 1902 Birthday Honours list,[8] and was invested with the insignia by King Edward VII at Buckingham Palace on 18 December 1902.