What is "biak-na-bato"

Biak-na-Bato is a barangay in San Miguel, Bulacan, Philippines.

Biak-na-Bato may also refer to:

• Biak-na-Bato National Park, a protected area in Bulacan, Philippines
• Republic of Biak-na-Bato, the first Philippine republic established in Bulacan, Philippines
• Pact of Biak-na-Bato, 1897 truce between Spanish and Filipino revolutionary forces