The Plaza de Armas is a public square in Intramuros, Manila.

[2] Historical evidence may suggest that the plaza is the site where the wooden palisade of Rajah Sulayman, on top of which Fort Santiago was built, was located[1] and deliberately allocated by Miguel López de Legazpi as the smaller of two open squares in Intramuros, the other being the larger Plaza Mayor (today's Plaza de Roma).

[3] Military barracks and storehouses surrounded the plaza, of which only its ruins stand today.

To the north is a cross erected in memory of World War II victims who were buried in a mass grave underneath by the Imperial Japanese Army.

On the eastern side is an eighteenth-century building subsequently converted into the Dulaang Raha Sulayman (Rajah Sulayman Theater), the venue of seasonal performances by the Philippine Educational Theater Association (PETA).