| Béla Mezőssy | |
| Order: | Minister of Agriculture of Hungary |
| Term Start: | 15 June 1917 |
| Term End: | 25 January 1918 |
| Predecessor: | Imre Ghillány |
| Successor: | Sándor Wekerle |
| Birth Date: | 1870 11, df=yes |
| Birth Place: | Tolcsva, Kingdom of Hungary, Austria-Hungary |
| Death Place: | Újfehértó, Kingdom of Hungary |
| Profession: | politician |
| Party: | Independence Party of 48, Independence Party of 48 (Kossuth Party) |
Béla Mezőssy (13 November 1870 – 19 January 1939) was a Hungarian politician, who served as Secretary of Agriculture from 1906 to 1910 and Minister of Agriculture between 1917 and his retirement in 1918.