This list includes all major auxiliary ships

Auxiliary ship

An auxiliary ship is a naval ship which is designed to operate in any number of roles supporting combatant ships and other naval operations. Auxiliaries are not primary combatants, although they may have some limited combat capacity, usually of a self defensive nature.Auxiliaries are extremely...

 (transports, colliers, scientific vessels, among others) in service with the Argentine Navy

Argentine Navy

The Navy of the Argentine Republic or Armada of the Argentine Republic is the navy of Argentina. It is one of the three branches of the Armed Forces of the Argentine Republic, together with the Army and the Air Force....

 since being formally established in the 1860s. It does not include vessels prior to that date, nor does it include warships which are listed separately.
Service entry dates indicate the ship's commissioning into the Argentine Navy and not the ship's entry in service with another navy unless specifically said.

Avisos

Irigoyen class (US-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Comandante Gral. Irigoyen	A-1	ex-USS Cahuilla USS Cahuilla (ATF-152) USS Cahuilla was a Navajo class fleet tug in the service of the United States Navy during World War II. In 1961 she was sold to the Argentine Navy as ARA Irigoyen where she served until 2009 when became a Museum ship....	1961	2010
ARA Francisco de Gurruchaga	A-3	ex-USS Luiseno USS Luiseno (ATF-156) USS Luiseno was an built for the United States Navy during World War II. Named after the Luiseño peoples , she was the only U.S...	1975	in service
ARA Suboficial Castillo ARA Suboficial Castillo (A-6) The ARA Suboficial Castillo is a Abnaki class tug patrol boat of the Argentine Navy. She previously served in the US Navy as USS Takelma from 1944 to 1976....	A-6	ex-USS Takelma	1993	in service

Sotomayor class (US-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Alférez Sobral	A-9	ex-USS Salish USS Salish (ATA-187) USS Salish was a Sotoyomo-class rescue tug US Navy ship, her hull was laid down on 29 August 1944...	1972	in service
ARA Comodoro Somellera ARA Comodoro Somellera (A-10) The ARA Comodoro Somellera was a Sotoyomo-class rescue tug that served in the Argentine Navy from 1972 to 1998 classified as Aviso...	A-10	ex-USS Catawba (ATA-210)	1975	1998

Teniente Olivieri class aviso (US-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Teniente Olivieri ARA Teniente Olivieri (A-2) The ARA Teniente Olivieri is a fleet ocean tug in service at the Argentine Navy classified as aviso.Homebased at Ushuaia is normally assigned to operate in Antarctica during the summer campaigns in the Patrulla Antártica Naval Combinada with the Chilean Navy to guarantee safety to all touristic...	A-2	ex-Marsea 10 (in the US Maritime Administration)		in service

Transports

Eltanin-class (US-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Islas Orcadas		formerly USNS Eltanin (T-AK-270) USNS Eltanin (T-AK-270) USNS Eltanin was an Eltanin-class cargo ship with an ice-breaking hull acquired by the U.S. Navy in 1957 and then operated by the Navy in a non-commissioned status, named after Eltanin, the star in constellation Draco...	1974	1979

Hércules class fast troop transport (British-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Hércules	B-52	formerly D-1, converted in 2000-2004	1977	in service

Costa Sur class transport (Argentine-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Canal de Beagle	B-3	none	1978	in service
ARA Bahia San Blas ARA Bahía San Blas (B-4) ARA Bahía San Blas is an Amphibious cargo ship of the Argentine Navy, capable of discharging landing craft, troops, vehicles and cargo. Is the first ship to bear the name of the Bay of San Blas in the south of Buenos Aires Province.-History:...	B-4	none	1978	in service
ARA Cabo de Hornos	B-5	none	1979	in service

Tankers/Oilers

Patagonia class replenishment oiler

Replenishment Oiler

A replenishment oiler or fleet tanker is a naval auxiliary ship with fuel tanks and dry cargo holds, which can replenish other ships while underway in the high seas. Such ships are used by several countries around the world....

(French-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Patagonia	B-1	Formerly Durance (A629), French Navy French Navy The French Navy, officially the Marine nationale and often called La Royale is the maritime arm of the French military. It includes a full range of fighting vessels, from patrol boats to a nuclear powered aircraft carrier and 10 nuclear-powered submarines, four of which are capable of launching... , Durance class tanker Durance class tanker The Durance class is a series of multi-product replenishment oilers, originally designed and built for service in the French Navy. Besides the five ships built for the French Navy, a sixth was built for the Royal Australian Navy, while the lead ship of the class currently serves with the Argentine...	1999	in service

Ingeniero Krause class tanker

Tanker (ship)

A tanker is a ship designed to transport liquids in bulk. Major types of tankship include the oil tanker, the chemical tanker, and the liquefied natural gas carrier.-Background:...

(Argentine-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Ingeniero Julio Krause		ex-Yacimientos Petrolíferos Fiscales Yacimientos Petrolíferos Fiscales Yacimientos Petrolíferos Fiscales is an Argentine oil company.Founded in 1922 under President Hipólito Yrigoyen's administration, it was privatized in 1993 by Carlos Menem, and bought by the Spanish firm Repsol; the resulting merger in 1999 produced Repsol YPF...  fleet	1993	in service

Repair ships

Achelous class (US-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Ingeniero Iribas	Q-21	USS ARL-5 USS ARL-5 USS ARL-5 was one of 39 Achelous-class landing craft repair ships built for the United States Navy during World War II.Originally laid down as LST-81 on 8 March 1943 at Jeffersonville, Indiana by the Jeffersonville Boat & Machine Company; launched on 28 May 1943; sponsored by Miss Bettie Meador;...	1947	1967
ARA Ingeniero Gadda	Q-22	USS ARL-6 USS ARL-6 USS ARL-6 was one of 39 Achelous class landing craft repair ships built for the United States Navy during World War II.Originally laid down as LST-82 on 25 March 1943 at Jeffersonville, Indiana by the Jeffersonville Boat & Machine Company; launched on 9 June 1943; sponsored by Mrs. G. D...	1947	1960

Icebreakers

Almirante Irizar class icebreaker

Icebreaker

An icebreaker is a special-purpose ship or boat designed to move and navigate through ice-covered waters. Although the term usually refers to ice-breaking ships, it may also refer to smaller vessels .For a ship to be considered an icebreaker, it requires three traits most...

(Finnish-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Almirante Irizar ARA Almirante Irízar (Q-5) The ARA Almirante Irízar is a large icebreaker of the Argentine Navy. The ship is currently out of service since 2007, when a fire broke out in the auxiliary generator compartment...	Q-5	none	1978	in service (1)

General San Martín class icebreaker

Icebreaker

An icebreaker is a special-purpose ship or boat designed to move and navigate through ice-covered waters. Although the term usually refers to ice-breaking ships, it may also refer to smaller vessels .For a ship to be considered an icebreaker, it requires three traits most...

(German-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA General San Martín	Q-4

(1) currently unserviceable, awaiting repairs due a 2007 incident.

Multipurpose ships

Ciudad de Zárate class multipurpose ship (US-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Ciudad de Zárate ARA Ciudad de Zárate (Q-61) ARA Ciudad de Zárate is a multi-purpose auxiliary ship of the Argentine Navy based at Puerto Madero. It was formerly known as the USCGC Red Cedar .-References:*...	Q-61	USCG RED CEDAR (WLM 688)	2000	in service
ARA Ciudad de Rosario ARA Ciudad de Rosario (Q-62) ARA Ciudad de Rosario is a multi-purpose auxiliary ship of the Argentine Navy based at Puerto Madero, Buenos Aires. It was formerly known as the USCGC Red Wood .-References:*...	Q-62	USCG RED WOOD (WLM 685)	2000	in service
ARA Punta Alta	Q-63	USCG RED BIRCH (WLM 687)	2000	in service

Oceanographic/Hydrographic Research

Puerto Deseado class oceanographic ship (Argentine-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Puerto Deseado ARA Puerto Deseado (Q-20) The ARA Puerto Deseado is an oceanographic survey ship in service in the Argentine Navy. She has a reinforced hull in order to operate in waters around Antarctica.-History:...	Q-20	none	1979	in service

Hydrographic

Hydrography

Hydrography is the measurement of the depths, the tides and currents of a body of water and establishment of the sea, river or lake bed topography and morphology. Normally and historically for the purpose of charting a body of water for the safe navigation of shipping...

 ships (Argentine-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Comodoro Rivadavia ARA Comodoro Rivadavia (Q-11) The ARA Comodoro Rivadavia is a survey ship of the Argentine Navy assigned to the national Hydrographic Naval Service which among other things is responsible of the maintenance of nautical charts, balises and lighthouses.-History:Comodoro Rivadavia was built by Mestrina shipyard in Tigre, Buenos...	Q-11	none	1974	in service
ARA Cormorán	Q-15	none	1964	in service
ARA Petrel	Q-16	none	1965	in service

School ships

Libertad class tall ship

Tall ship

A tall ship is a large, traditionally-rigged sailing vessel. Popular modern tall ship rigs include topsail schooners, brigantines, brigs and barques. "Tall Ship" can also be defined more specifically by an organization, such as for a race or festival....

(Argentine-built)

Ship Name	Pennant Number	Other names	Service entry	Decommissioning
ARA Libertad ARA Libertad (Q-2) ARA Libertad is a tall ship which serves as a school ship in the Argentine Navy. She was built in the 1950s at the Río Santiago Shipyard near La Plata, Argentina...	Q-2	none	1963	in service