| Casildo Maldaner | |
| Office: | Senator from Santa Catarina |
| Term Start: | January 1, 2011 |
| Term End: | January 1, 2015 |
| Office2: | Governor of Santa Catarina |
| Term Start2: | March 27, 1990 |
| Term End2: | March 15, 1991 |
| Birth Date: | 2 April 1942 |
| Birth Place: | Carazinho, Rio Grande do Sol |
| Party: | Brazilian Social Democracy Party |
| Profession: | Lawyer |
Casildo Maldaner (April 2, 1942 – May 17, 2021)[1] was a Brazilian politician and lawyer. He represented Santa Catarina in the Federal Senate from 2011 to 2015. He was governor of Santa Catarina from 1990 to 1991. He was a member of the Brazilian Social Democracy Party.[2]