Bongsanglay Natural Park (also spelled Bongsalay and Bujong Sanglay) is a protected area of mangrove forests and swamps on Ticao Island in the Bicol Region of the Philippines.

It is located in the municipality of Batuan in the island province of Masbate covering an area of 244.72 hectares (604.7 acres).

[1] The protected area was established on 29 December 1981 when the area "from Panciscan Point in Bitos Bay up to Bano Sanlay" in Batuan was declared a Mangrove Swamp Forest Reserve under Proclamation No.

319, Bongsanglay was reclassified as a natural park pursuant to the National Integrated Protected Areas System (NIPAS) Act.

[5][4] It also supports 68 avifauna species, including mangrove heron, Pacific reef heron, little egret, wandering whistling duck, white-collared kingfisher, Pacific swallow, common emerald dove, zebra dove, amethyst brown dove, common cuckoo, river kingfisher, pied triller, grey wagtail, grey-tailed tattler and the endemic Philippine duck.