Penang State Assembly Building, Legislative assembly hall in George Town, Malaysia.

The Penang State Assembly Building is the home of the Penang State Legislative Assembly, on Light Street in George Town, Penang, Malaysia, within the city's UNESCO World Heritage Site. Built in the 1820s in the Anglo-Indian classical style, it has massive white colonnades supporting a large pediment, with elements of classical Greek and Palladian architecture.

Construction began in the 1820s and initially served as part of George Town's police headquarters. A major transformation occurred in the mid-20th century to adapt the building for its present legislative role.

The building houses Penang's elected lawmakers and forms the heart of state decision-making for the region. Inside, the legislative body gathers to debate and pass laws that shape everyday governance and development.

The building stands on Light Street in George Town, within the UNESCO World Heritage Site. It is the working home of the Penang State Legislative Assembly, so access is tied to assembly business rather than general sightseeing; the sources give no public tour or session arrangements. The white colonnades and pediment face the street and can be seen from outside.

The building's exact construction date in the 1820s has never been determined. It was renovated in 1874, and in 1890 another administrative building was added to the police complex. Converting it for the new Penang State Legislative Assembly in 1959 cost $150,000 in Malaya and British Borneo dollars.