| Legislative Assembly of Rio de Janeiro | |
| Native Name: | Assembleia Legislativa do Rio de Janeiro |
| Native Name Lang: | pt |
| Legislature: | 13th Legislature of the Legislative Assembly |
| Coa Pic: | Brasão do estado do Rio de Janeiro.svg |
| Coa Res: | 100px |
| Term Limits: | None |
| New Session: | 1 February 2023 |
| House Type: | Unicameral |
| Leader1 Type: | President |
| Leader1: | Rodrigo Bacellar |
| Election1: | 1 February 2023 |
| Leader2 Type: | Government Leader |
| Leader2: | Doutor Serginho |
| Leader3 Type: | Opposition Leader |
| Seats: | 70 |
| Structure1: | ALERJ2023.svg |
| Structure1 Res: | 200 |
| Political Groups1: | Government (48) PL (17) UNIÃO (8) PSD (6) PP (5) Republicanos (3) PODE (3) MDB (2) PRD (2) PMN (1) Agir (1) Opposition (17) FE Brasil (8) PSOL (5) PSB (2) PDT (2) Independent (5) SOLIDARIEDADE (4) AVANTE (1) |
| Term Length: | 4 years |
| Next Election1: | 2026 |
| Session Room: | Palácio Tiradentes.jpg |
| Session Res: | 250px |
| Meeting Place: | Tiradentes Palace, Rio de Janeiro |
The Legislative Assembly of Rio de Janeiro (Portuguese: Assembleia Legislativa do Estado do Rio de Janeiro or ALERJ) is the unicameral legislature of the state of Rio de Janeiro in Brazil. It has 70 state deputies elected by proportional representation.
After the 1834 Additional Act, the Provincial Assembly was founded in the city of Vila Real de Praia Grande (now Niterói), after the unification of the states of Guanabara and Rio de Janeiro on March 15, 1975 the assembly was moved to the Tiradentes Palace in the city of Rio de Janeiro (site of the Chamber of Deputies of Brazil until 1960).