| Princess Maria Carolina | |
| Full Name: | Italian: Maria Carolina Ferdinanda |
| Countess of Montemolin | |
| Spouse: | Infante Carlos, Count of Montemolin (m. 1850; died 1861) |
| House: | Bourbon-Two Sicilies |
| Father: | Francis I of the Two Sicilies |
| Mother: | Maria Isabella of Spain |
| Birth Date: | 29 November 1820 |
| Birth Place: | Naples, Two Sicilies |
| Death Place: | Trieste, Austrian Empire |
| Burial Place: | Cathedral of St. Just, Trieste |
Princess Maria Carolina Ferdinanda of Bourbon-Two Sicilies (29 November 1820 – 14 January 1861) was a princess of the House of Bourbon-Two Sicilies and an infanta of Spain through her marriage to Infante Carlos, Count of Montemolin, Carlist claimant to the throne of Spain under the name Carlos VI. Maria Carolina was a daughter of Francis I of the Two Sicilies and his second wife Maria Isabella of Spain.
Maria Carolina married her first cousin Infante Carlos of Spain, Count of Montemolin, eldest son of Infante Carlos, Count of Molina and his wife Infanta Maria Francisca of Portugal, on 10 July 1850 at Caserta Palace in Caserta, Two Sicilies.
Maria Carolina and her husband died of typhus within a few hours of one another on 14 January 1861 in Trieste. Maria Carolina had contracted the disease from nursing her husband. The couple died without issue. Maria Carolina and Carlos were buried at the Cathedral of St. Just in Trieste.
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