Sapucaia is a municipality in the Brazilian state of Rio de Janeiro. It lies in the country's Southeast Region and covers an area of 540 square kilometres. Its population was recorded as 18,249 in 2020.
The name Sapucaia is also the local term for the tree Lecythis zabucajo, a species of the Lecythidaceae family found in the region. The municipality shares its name with several other places in Brazil, including a district in the state of Minas Gerais.