Sir Ivor Algernon Atkins (29 November 1869 – 26 November 1953) was the choirmaster and organist at Worcester Cathedral for over 50 years (1897-1950). He is well known for editing Allegri's Miserere with the famous top-C part for the treble. He is also well known for The Three Kings, an arrangement of a song by Peter Cornelius as a choral work for Epiphany.