The Cry of Pugad Lawin (Filipino: Sigaw ng Pugad Lawin), alternately and originally referred to as the Cry of Balintawak (Filipino: Sigaw ng Balíntawak, Spanish: Grito de Balíntawak), was the beginning of the Philippine Revolution against the Spanish Empire.
At the close of August 1896, members of the Katipunan secret society (Katipuneros) led by Andrés Bonifacio rose up in revolt somewhere in an area referred to as Kalookan, wider than the jurisdiction of present-day Caloocan City which may have overlapped into present-day Quezon City.
Originally the term "Cry" referred to the first clash between the Katipuneros and the Civil Guards (Guardia Civil). The cry could also refer to the tearing up of community tax certificates (cédulas personales) in defiance of their allegiance to Spain. This was literally accompanied by patriotic shouts.
Because of competing accounts and ambiguity of the place where this event took place, the exact date and place of the Cry is in contention. From 1908 until 1963, the official stance was that the Cry occurred on August 26 in Balintawak. In 1963 the Philippine government declared a shift to August 23 in Pugad Lawin, Quezon City.