| Legislative Assembly of Santa Catarina | |
| Native Name: | Assembleia Legislativa de Santa Catarina |
| Coa Pic: | Brasão de Santa Catarina.svg |
| Coa Res: | 100px |
| House Type: | Unicameral |
| Members: | 40 |
| Structure1: | Brazil Alesc 2023.svg |
| Structure1 Res: | 250px |
| Political Groups1: | Government (32)
Opposition (6) Independent (2)
|
| Term Length: | 4 years |
| Next Election1: | 4 October 2026 |
| Session Res: | 250px |
The Legislative Assembly of Santa Catarina (Portuguese: Assembleia Legislativa de Santa Catarina) is the unicameral legislature of Santa Catarina state in Brazil. It has 40 state deputies elected by proportional representation.
The Assembly was created on August 12, 1834, the first legislature had 20 deputies, until 1881 when it was increased to 22.