| João Alberto de Souza | |
| Office: | Senator for Maranhão |
| Term Start: | 1 February 2011 |
| Term End: | 1 February 2019 |
| Term Start1: | 1 February 1999 |
| Term End1: | 1 February 2007 |
| Office2: | Governor of Maranhão |
| Term Start2: | 3 April 1990 |
| Term End2: | 15 March 1991 |
| Predecessor2: | Epitácio Cafeteira |
| Successor2: | Edison Lobão |
| Office3: | Vice Governor of Maranhão |
| Term Start3: | 17 April 2009 |
| Term End3: | 1 January 2011 |
| Governor3: | Roseana Sarney |
| Predecessor3: | Luís Carlos Porto |
| Successor3: | Washington Oliveira |
| Term Start4: | 15 March 1987 |
| Term End4: | 3 April 1990 |
| Governor4: | Epitácio Cafeteira |
| Predecessor4: | João Rodolfo |
| Successor4: | José de Ribamar Fiquene |
| Office5: | Member of the Chamber of Deputies |
| Term Start5: | 1 February 1995 |
| Term End5: | 1 February 1999 |
| Constituency5: | Maranhão |
| Term Start6: | 1 February 1979 |
| Term End6: | 1 February 1987 |
| Constituency6: | Maranhão |
| Office7: | Member of the Legislative Assembly of Maranhão |
| Term Start7: | 1 February 1975 |
| Term End7: | 1 February 1979 |
| Constituency7: | At-large |
| Birth Date: | 1 October 1935 |
| Birth Place: | São Vicente Ferrer, Maranhão, Brazil |
| Party: | MDB (1994–present) |
| Alma Mater: | Cândido Mendes University (BEc) |
| Profession: | Economist |
João Alberto de Souza (born 1 October 1935) is a Brazilian politician and businessman. He had represented Maranhão in the Federal Senate from 2011 to 2019. Previously, he was a Deputy from Maranhão from 1999 to 2003. Alberto de Souza was governor of Maranhão from 1990 to 1991. He is a member of the Brazilian Democratic Movement Party, for which he was vice governor of Roseana.[1]