Corvettes and Patrol Ships
Corvettes
BRP Conrado Yap PS-39 (2019) Pohang Class corvette LOA 290′ / 88.4 m TDISP 1,220 tons formerly South Korean ROKS Chungju PCC-762 1987-2016

Jacinto class corvettes LOA 205′ / 62.5 m TDISP 712 tons (3 active, service since 1997) formerly these were Peacock class corvettes/patrol vessels with the Royal Navy’s Hong Kong squadron.
BRP Apolinario Mabini PS-36 (1997) formerly HMS Plover P-240 (1984-1997)

BRP Artemio Ricarte PS-37 (1997) formerly HMS Starling P-241 (1984-1997)

BRP Emilio Jacinto PS-35 (1997) formerly HMS Peacock P-239 (1983-1997)
Rizal Class corvettes LOA 222′ / 67.7 m TDISP 1,250 tons (Philippine Navy service 1960-2021, 4 units, 2 recently retired, may be preserved) formerly USN Auk Class minesweepers (USN service 1944-ca.1966)
BRP Quezon PS-70 (1967-2021) formerly Auk Class minesweeper USS Vigilance AMS-324 (1944-1966) Distinguished WW2 Pacific Campaign service (detailed summary at wiki article).

BRP Rizal PS-74 (1965-2020) formerly Auk class minesweeper USS Murrelet AM-372 (1945-1964) Participated in Korean War sweeping operations.

Miguel Malvar Class corvette/Ocean Patrol Vessel (8, 1 lost, 2 still active in 2021). LOA 184′ / 56.1 m TDISP 400 tons. originally made up of three distinct classed of US WW2 wartime ships: Admirable class minesweepers, PCE-842 class patrol and rescue escorts. Some of the units had South Vietnamese (Republic of Vietnam Navy) service.

BRP Magat Salamat PS-20 (1975) formerly Admirable class minesweeper USS Gayety AM-239 (1945-1954). Served in the Pacific War sweeping around the Japanese home islands. Transferred to Republic of Vietnam Navy (South Vietnam) as RVNS Chi Lăng II HQ-08 (1962-1975) escaped to Philippines to be commissioned. If this is still in commission it is one of the oldest active patrol ships.

BRP Pangasinan PS-31 (1948-2021) formerly PCE-842 class USS PCE-891 (1944-1948)

BRP Iloilo PS-32 (1948-2016) formerly PCE-842 class USS PCE-897 (1945-1948)
Patrol Ships
BRP General Mariano Alvarez PS-38 (2004) Cyclone Class coastal patrol vessel LOA 179′ / 54.6 m TDISP 400 tons formerly USS Cyclone (1993-2004)

Aguinaldo class patrol vessels LOA 144′ / 43.9 m TDISP 240 tons(2 retired, service 1990-2016, 1 uncompleted hulk)
Kagitingan class patrol vessels LOA 121′ / 36.9 m TDISP 150 tons (2 active, 2 retired, service since 1979)

BRP Bagong Silang PB-104 (1983)
Tomas Batilo class patrol boats LOA 112′ / 34.1 m TDISP 150 tons (7, all retired, service 1996-2021) Originally units of the 75 unit Korean-built Sea Dolphin (PKM 200) class patrol boats. ROKN service (ca.1978-2005). A length of 121′ quoted in most sources seems inaccurate against multiple views.
BRP Tomas Batilo PC-110 (1996-2003) Formerly Republic of Korea PKM-225 (1978-1995) Sank in a typhoon at the base. Raised with USN assistance and salvaged 2009.
BRP Dionisio Ojeda PC-117 (2006-2016) Sunk as target 2018. Formerly Republic of Korea Navy PKM-232 (1970s-2006)
