Don Carlos Martínez de Irujo y McKean, 2nd Marquis of Casa Irujo, jure uxoris Duke of Sotomayor, Grandee of Spain (Washington, D.C., 14 December 1802 – Madrid, 26 December 1855) was a Spanish noble and politician who served as Prime Minister of Spain. He was son of the diplomat Carlos Martínez de Irujo, 1st Marquis of Casa Irujo and his wife Sarah MacKean, daughter of the Pennsylvania governor Thomas McKean. Don Carlos became Grandee of Spain in 1844 through his marriage to Gabriela del Alcázar, 7th Duchess of Sotomayor.
| Political offices | ||
|---|---|---|
| Preceded by Francisco Javier de Istúriz |
Prime Minister of Spain 28 January 1847 – 28 March 1847 |
Succeeded by Joaquín Francisco Pacheco |
| Minister of State 28 January 1847 – 28 March 1847 |
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| Preceded by The Duke of Valencia |
Minister of State 23 October 1847 – 29 July 1848 |
Succeeded by The Marquis of Pidal |