| Alexandru Cantacuzino | |
| Minister of Foreign Affairs of Principality of Romania | |
| Term Start: | June 24, 1862 |
| Term End: | September 29, 1862 |
| Predecessor: | Apostol Arsache |
| Successor: | Ioan G. Ghica |
| Office2: | Minister of Finance of Principality of Romania |
| Term Start2: | July 12, 1862 |
| Term End2: | March 16, 1863 |
| Predecessor2: | Teodor Ghica |
| Successor2: | Constantin I. Iliescu |
| Birth Date: | 1811 |
| Death Date: | 8 March 1884 |
| Death Place: | Athens, Greece |
| Spouse: | Marie Cantacuzène |
Alexandru Cantacuzino (1811 – 8 March 1884) was a Romanian politician from the Cantacuzino family who served as the Minister of Foreign Affairs from June 24, 1862, until September 29, 1862, and as the Minister of Finance from July 12, 1862, until March 16, 1863.[1]
He was the son of Alexandros Kantakouzinos and Ukrainian Yelizaveta Mykhailivna Daragan. He married his cousin Marie Cantacuzène.[2]