All the Indonesian Navy (, TNI-AL) vessels are named with the prefix KRI ( or Naval Vessel of the Republic of Indonesia). Smaller sized boats with light armaments usually have the prefix KAL ( or Naval Vessel of the Indonesian Navy). The classes are often named after lead ships or the first ship commissioned.
The Indonesian Navy has a traditional naming convention for its ships. Moreover, the ship's type and missions can be identified by the first number on the ship's three-digit hull number, which is located at the bow and the stern of a vessel. The naming convention is such as:
Hull number beginning with 1 (aircraft carriers): historical empires and kingdoms Hull number beginning with 2 (cruisers and destroyers): Indonesia's main islands (for cruisers), national heroes and other historical figures (for destroyers) Hull number beginning with 3 (frigates, corvettes): national heroes, naval heroes, or other historical figures Hull number beginning with 4 (submarines, submarine tenders): mythical weapons (for submarines), national heroes (for submarine tenders) Hull number beginning with 5 (amphibious ships, LSTs, LPDs, LCUs, command ships): strategic bays or gulfs (for LSTs), big cities (for LPDs), small cities (for LCUs), national figures (for command ships) Hull number beginning with 6 (fast attack craft): mythical weapons (previous names for missile boats), traditional weapons (current names for fast missile boats), wild animals (for fast torpedo boats) Hull number beginning with 7 (minesweepers, minehunters): every island begin with letter "R", letter "F" (mine countermeasures vessel) Hull number beginning with 8 (patrol boats): native fishes and sea creatures, native snakes and wild reptiles, wild insects, geographical places (such as towns, lakes or rivers begin with "si-", e.g. Sikuda, Sigurot, Sibarau) Hull number beginning with 9 (supporting ships, oilers, tugs, troop transports, oceanographic research ships, sailing ships, etc.): volcanoes, cities, mythical figures, geographical capes and straits
Aircraft carriers Aircraft carriers are named after past kingdoms and empires with hull numbers beginning with 1. ClassPictureTypeShipsOrigin Note Modified Giuseppe Garibaldi class Light aircraft carrier KRI Sriwijaya (100) In active service. Its aircraft complement acquisition is in progress.
Submarine fleet Submarines have hull numbers starting with 4 and are named after mythological weapons. Class Picture Type Boats Origin Note Submarine (4 in active service, 2 under construction) Tbd Attack submarine KRI Tbd Construction of two Scorpène Evolved submarines started in August 2026. KRI Tbd Attack submarine KRI Nagapasa (403) In active service. Variant of Jang Bogo-class submarine design. KRI Ardadedali (404) KRI Alugoro (405) Attack submarine KRI Cakra (401) In active service. Variant of type 209 submarine design. Midget Submarine (6 planned) Drass DGK Midget submarine Tbd 6 units planned. Submersibles (2 in active service) PAL KSOT Submersible Undisclosed number on order as of June 2026, previously reported 30 units planned. Drass DS8 SDV Submersible 2 in active service.
Surface fleet Surface ships are typically named after national heroes or other historical figures of Indonesia and have hull numbers beginning with 3. Class Picture Type Ships Origin Notes Frigate (9 in active service, 1 fitting out, 1 under construction, 2 on order) Balaputradewa class General Purpose Frigate KRI Balaputradewa (322) (Fitting out) Type 31 frigate
Known locally as "FMP" ( or "Red White Frigate").
Second ship keel laying on 15 November 2024.
Lead ship launched on 18 December 2025.
A Letter of Intent for two additional ships signed on 21 January 2026. KRI Tbd (Under construction) Brawijaya class General Purpose Frigate KRI Brawijaya (320) In active service.
Locally classified as frigate. KRI Prabu Siliwangi (321) Istanbul class General Purpose Frigate KRI Tbd On order.
Two Istanbul-class frigates ordered on 26 July 2025. KRI Tbd Martadinata class Guided-missile Frigate KRI Raden Eddy Martadinata (331) In active service. Variant of Sigma-class design.
Known locally as "PKR" (Perusak Kawal Rudal or "Guided Missile Destroyer Escort"). KRI I Gusti Ngurah Rai (332) Ahmad Yani class Guided-missile Frigate KRI Ahmad Yani (351) In active service. Ex-Van Speijk-class frigate upgraded and refurbished. KRI Yos Sudarso (353) KRI Oswald Siahaan (354) KRI Abdul Halim Perdanakusuma (355) KRI Karel Satsuitubun (356) Corvette (26 in active service) Bung Tomo class Guided-missile Corvette KRI Bung Tomo (357) In active service. Ex-Nakhoda Ragam-class corvette. KRI John Lie (358) KRI Usman Harun (359) Diponegoro class Guided-missile Corvette KRI Diponegoro (365) In active service. Variant of Sigma-class design. KRI Sultan Hasanuddin (366) KRI Sultan Iskandar Muda (367) KRI Frans Kaisiepo (368) Bung Karno class Corvette KRI Bung Karno (369) In active service. Designated as Korvet Rudal Heli or "Helicopter Guided Missile Corvette". KRI Bung Karno also serves as presidential transport ship. KRI Bung Hatta (370) Fatahillah class Corvette KRI Fatahillah (361) In active service. KRI Nala (363) features helipad and telescopic hangar for light helicopter. KRI Malahayati (362) KRI Nala (363) Kapitan Pattimura class ASW Corvette KRI Kapitan Pattimura (371) In active service. Ex-Parchim I-class (Project 133.1) corvette. Originally, 16 ships were bought. As of 2026, 14 ships still remain in active service. KRI Untung Suropati (372) KRI Sultan Nuku (373) KRI Lambung Mangkurat (374) KRI Cut Nyak Dien (375) KRI Sultan Thaha Syaifuddin (376) KRI Sutanto (377) KRI Sutedi Senoputra (378) KRI Wiratno (379) KRI Tjiptadi (381) KRI Hasan Basri (382) KRI Imam Bonjol (383) KRI Teuku Umar (385) KRI Silas Papare (386) Offshore Patrol Vessel (2 on trials, 1 under construction) Raja Haji Fisabilillah class Offshore Patrol Vessel KRI Raja Haji Fisabilillah (391) (Sea trials) Designated as OPV-90M.
First ship launched on 18 September 2024. Second ship launched on 20 September 2024. Third ship keel laying on 19 November 2025. KRI Lukas Rumkorem (392) (Sea trials) KRI Tbd (Under construction)
Amphibious Warfare fleet Amphibious Warfare ships have hull numbers starting with 5. LSTs with helipads and LPDs with wider flight decks are generally used for transport, whereas the reverse is used for amphibious warfare. Command ships are named after national figures, LPDs are named after maritime cities, and LSTs are named after bays. Class Picture Type Ships Origin Note Command Ship (1 in active service) Multatuli class Command Ship KRI Multatuli (561) In active service. Landing Platform Dock (5 in active service) Landing Platform Dock In active service. The last two ship of the class features a third helicopter landing spot, shortened superstructure and different mast design. Semarang class Landing Platform Dock In active service. Sister class of the Makassar class.
Modified Tarlac class design to increase troop capacity with total accommodation up to 771 personnel.
As of January 2020, she was used as a provisional hospital ship.
On 4 October 2025, it is confirmed by the Navy that she is returned to her basic function as the landing platform dock. Landing Ship (23 in active service) Landing Ship Tank In active service.
(520), (522), (523), (524) features a large hangar to support sustained helicopter operation.
Only (520) has the length of 120 meters and 18 meters beam, the rest of the class were 117 meters long and has 16.4 meters wide beam. KRI Teluk Bintuni (520) Landing Ship Tank KRI Teluk Amboina (503) In active service. (503) bought from Japan in 1961 (a copy of US LST-511-class). Landing Ship Tank In active service. The last two ships in the series (516 & 517) include a large hangar built into the superstructure. Landing Ship Medium In active service. Ex-Frosch I (531–542) & Frosch II (543–544)-class medium landing ships. Out of 14 ships only 10 remain in service.
Fast Attack Craft fleet Fast attack crafts are small vessels that are used in hit-and-run strategies and have hull numbers beginning with 6. Missile boats are named after traditional weapons from Indonesia while torpedo boats are named after wild animals.
ClassPictureTypeShips OriginNoteFast attack craft (25 in active service, 5 under construction) FAC/M 70M KRI TbdKRI Tbd Under construction. 70m fast missile craft with turbine gas propulsion, built by Sefine Shipyard. Locally designated as KCR-70M.
Construction started on 30 October 2024. The keels were laid on 17 July 2025. TbdMissile boatKRI TbdKRI Tbd Under construction. Another variant of KCR-60m (68m in length) with water-jet propulsion.
Built by PT. Palindo Marine, the keel was laid on 12 June 2024.Belati classKRI TbdKRI TbdIn active service. KCR-60M variant with water-jet propulsion.
Built by PT. Tesco Indomaritim since 2021.
1 unit entered service.Klewang classKRI Golok (688)In active service. Launched on 21 August 2021 by PT. Lundin Industry Invest in Banyuwangi.Sampari classKRI Kapak (625)KRI Panah (626) In active service. Designated as KCR-60M (Kapal Cepat Rudal 60M or Fast Missile Boat 60M). Clurit class KRI Surik (645)KRI Siwar (646)KRI Parang (647)KRI Terapang (648) In active service. Designated as KCR-40M (Kapal Cepat Rudal 40M or Fast Missile Boat 40M). Mandau class KRI Mandau (621)KRI Badik (623)KRI Keris (624) FPB-57 class Torpedo boatMissile boat FPB-57 Nav IIKRI Singa (651) KRI Ajak (653)FPB-57 Nav VKRI Todak (631)KRI Lemadang (632)KRI Hiu (634)KRI Layang (635) FPB-57 Nav IIEquipped with SUT torpedo.FPB-57 Nav VImproved variant of Nav IV version.
KRI Hiu (634) & KRI Layang (635) equipped with C-802 missile.
Patrol fleet The patrol ships are classified under the prefix KRI, KAL, and Patkamla. KRIs are larger and have more firepower while KALs are smaller and more lightly armed. Most of these smaller boats are better known domestically as Fast Patrol (Patroli Cepat – PC) vessels and are used to patrol and maintain order in Indonesia. Patkamla (Patroli Keamanan Laut) or Marine Security Patrol ships are the smallest in the fleet and are usually only armed with light and heavy machine guns. These boats are mainly used to patrol around various naval bases or Lanal (Pangkalan TNI AL). Due to the sheer number of Lanals, the Navy sources some of its patrol vessels (mostly Patkamla or seldom KAL vessels) from local shipbuilders in the region around its bases' location. This resulted in a varied bunch of ship classes and designs based on different standards adopted by the various ship builder. Patrol boats are named after fish, snakes, and small islands from Indonesia. The larger patrol boats that use the KRI prefix have a hull number that starts with the number 8, while smaller KALs and Patkamlas use a different numbering system.
The list below does not reflect the actual number of patrol vessels used by Indonesian Navy due to various factors, such as insufficient open-source data of some vessels and the lack of coverage by most national or international publications on patrol boats smaller than 18 meters (mostly Patkamla vessels), which are often converted from locally sourced boats near its Lanal location.
ClassPictureTypeVesselsOrigin NotePatrol BoatPatrol BoatKRI Dorang (874)KRI Bawal (875)KRI Tuna (876)KRI Marlin (877)KRI Hampala (880)KRI Lumba-Lumba (881)In active service. Designated as PC-60M (Patroli Cepat 60M or Fast Patrol 60M).