Naval Service Reserve
Irish: Cúltaca na Seirbhíse Cabhlaigh
Emblem of the Naval Service Reserve
Active	1 October 2005–present
Country	Ireland
Branch	Naval Service
Type	Naval Reserve
Size	97 personnel (Aug 2024)[1] 200 (establishment)
Part of	Irish Defence Forces
Website	www.military.ie/en/who-we-are/reserve-defence-forces/naval-service-reserve/
Insignia
Cúltaca shoulder insignia

The Naval Service Reserve (NSR) (Irish: Cúltaca na Seirbhíse Cabhlaigh) is the reserve force of the Irish Naval Service. It is one of two elements of the Reserve Defence Forces (RDF) of the Irish Defence Forces, the other element being the Army Reserve (AR). The NSR was established on 1 October 2005 to replace and reorganise the previous naval reserve organisation, An Slua Muirí, which in turn replaced the fore-runner Maritime Inscription founded in 1940 to act as a Port Control authority during The Emergency (WWII). Originally formed at Dublin's Alexandra Basin, its headquarters was in Portobello barracks, now known as Cathal Brugha Barracks.^[2]

Organised in five units, one each in Dublin, Waterford, Cork and Limerick, and another specialist unit, the Technical Support Unit. As of August 2024 the NSR had a strength of 97 personnel of all ranks.^[1] The reserve supplements the crew of vessels of the Irish Naval Service during patrols of territorial waters and overseas visits, as well as conducting stand-alone operations within their respective ports, such as security duties, sighting reports and intelligence gathering.^[3][4] All Naval Service Reserve members fall under the Naval Service Executive Division (Seaman's Division).

Enlistment is open to EU citizens between the ages of 18 and 35, provided they are ordinarily resident in Ireland, can pass fitness tests, an interview, medical examination, are of good character and obtain a security clearance, and also to non-EU citizens who have been continuously legally resident in the Republic for at least three years.

The NSR is a part-time voluntary organisation, and trains members in aspects of nautical and military disciplines to supplement and aid the permanent Naval Service. Periods of enlistment vary and is initially for four years. Progression through the ranks is possible including a commission and promotion to the rank of Lt/Cdr (see Irish Naval Service#Personnel and ranks).

Up to 6 weeks paid training may be undertaken by a reservist each year (further sea training possible when demand arises). Reservists are liable to be called up on permanent service by ministerial order in times of emergency.^[5]

NSR personnel formed part of the crew of the LÉ Eithne which was deployed to Cork as a testing centre in support of the HSE, as part of Ireland's response to the coronavirus pandemic (COVID-19) in early 2020.^[6][7]

In 2021 it was reported that the Naval Service would acquire four motor launches to be built by FM Marine Services Ltd for the Naval Service Reserve.^[8] The 30 tonne boats are due to have a crew of four and can be armed with two general purpose machine guns. The boats are planned to be based at Dublin, Cork, Waterford, and Foynes/Limerick.^[9] The first of these boats was named Fionnghuala and launched in December 2024.^[10][11]

Prior to 2002 ranks for NCOs in the Naval Reserve were in blue instead of gold.^[12] Since 2002 naval reserve personnel have worn the same rank insignia as their non-reserve counterparts.

Rank group	Senior NCOs																						Junior NCOs						Enlisted
Irish Naval Service Reserve (Pre-2002)																																			No insignia
							Senior chief petty officer Ard-mhion-oifigeach sinsearach		Chief petty officer Ard-mhion-oifigeach		Senior petty officer Mion-oifigeach sinsearach						Petty officer Mion-oifigeach						Leading seaman Mairnéalach ceannais				Able seaman Mairnéalach inniúil		Ordinary seaman Mairnéalach						Seaman recruit Earcach

Name	Origin	Type	Caliber	Photo	Notes
Pistol
Heckler & Koch USP	Germany	Semi-automatic pistol	9×19mm		Standard service pistol[13]
Assault Rifle
Steyr AUG	Austria	Assault Rifle	5.56×45mm		Standard service rifle since 1989
Battle Rifle
FN FAL	Belgium	Battle Rifle	7.62×51mm		Only used for line throwing
Machine gun
FN MAG	Belgium	Machine gun	7.62×51mm		Fitted onboard Naval Service ships for close range weapons support and anti-air point defence. Can also be mounted on RHIB's
M2 Browning .5 Heavy Machine Gun (HMG)	Belgium	Machine gun	12.7×99mm (.50)		Fitted onboard Naval Service ships for close range weapons support and anti-air point defence

• Army Reserve (Ireland)

• Irish Defence Forces website - Naval Service Reserve