Sir Alexander Drummond Gibson CBE FRSE FRCM FRSA (11 February 1926 – 14 January 1995) was a Scottish conductor and opera intendant.
He was Assistant Conductor of the BBC Scottish Symphony Orchestra 1952–54 and conducted two productions for the amateur Glasgow Grand Opera Society in 1954.
During his career he made guest appearances with all the major British orchestras and extensively throughout Europe, Australia, the Americas, Hong Kong and Japan.
He was made a Commander of the Order of the British Empire (CBE) in 1967, was created a Knight Bachelor in 1977 and became president of the Royal Scottish Academy of Music and Drama, where in his memory, the Alexander Gibson School of Opera was opened in 1998.
Gibson was the recipient of the 1970 St Mungo Prize, awarded to the individual who has done most in the previous three years to improve and promote the city of Glasgow.
Sir Alexander Gibson's mission was to make classical music and opera accessible to all, and throughout his career he devotedly encouraged musicians and singers to rise to the very best of their abilities.
In the Theatre Royal, Glasgow there is a lofty portrait of him in the orchestra pit perched on a stool, painted by David Donaldson, the Queen's Limner in Scotland, and a bust of him as conductor by the sculptor Archie Forrest.