| Mario Búcaro | |
| Office: | Minister of Foreign Affairs |
| President: | Alejandro Giammattei |
| Term Start: | 1 February 2022 |
| Term End: | 14 January 2024 |
| Predecessor: | Pedro Brolo |
| Successor: | Carlos Ramiro Martínez |
| Office1: | Guatemala Ambassador to Mexico |
| President1: | Alejandro Giammattei |
| Term Start1: | 3 March 2020 |
| Term End1: | 1 February 2022 |
| Predecessor1: | Nelson Olivero |
| Successor1: | Marco Chicas Sosa |
| Office2: | Guatemala Ambassador to Israel |
| President2: | Jimmy Morales Alejandro Giammattei |
| Term Start2: | 25 October 2018 |
| Term End2: | 3 March 2020 |
| Predecessor2: | Sara Angelina Solís Castañeda |
| Successor2: | Julissa Anzueto Aguilar |
| Birth Date: | 5 May 1977 |
| Birth Place: | Guatemala City |
| Alma Mater: | Rafael Landívar University University of Salamanca University of San Carlos of Guatemala |
Mario Adolfo Búcaro Flores is a Guatemalan diplomat and civil servant who served as the Minister of Foreign Affairs from February 2022 to January 2024, under the government of Alejandro Giammattei. Previously, he was the Guatemalan Ambassador to Mexico, Israel, Bulgaria and Cyprus.[1] [2]