During the Spanish colonial era, Plaza Dilao became one of the Japanese settlements in Manila. In 1915, Dilao became a transport center with the operation of the Paco Railway Station. During World War II, intense battle were fought in the area between the Japanese and joint Filipino and American forces. A statue of Justo Ukon Takayama can be seen in this plaza.

Plaza Dilao is a public square in Paco, Manila, bounded by Quirino Avenue to the south and east and Plaza Dilao Road to the north and west. The former site of a Japanese settlement from the Spanish colonial era, the plaza prominently features a memorial commemorating Japanese Catholic kirishitan daimyō Dom Justo Takayama, who settled there in 1615. It is one of two open public spaces in Paco, the other being Paco Park.

Plaza Dilao is one of five freedom parks in the City of Manila, where protests and rallies may be held without requiring permission from local authorities.