Victor Alexander Sereld Hay, 21st Earl of Erroll and 4th Baron Kilmarnock, KCMG, styled Lord Kilmarnock from 1891 to 1927, was a British diplomat, a writer and briefly a member of the House of Lords, who was "noted for his tact and charm."
- Occupation
- diplomat, politician
- Position held
- member of the House of Lords
- Citizenship
- United Kingdom, United Kingdom of Great Britain and Ireland
- Born
- October 17, 1876
- Died
- February 20, 1928