Navy comparison: Ireland vs Japan
Japan's 154-ship navy outnumbers Ireland's 36 vessels (4.3x advantage). Of these, 31 and 154 are in active service respectively. The fleet breakdown includes 0 vs 25 submarines, 0 vs 46 destroyers, 0 vs 4 frigates, 0 vs 16 amphibious ships, 29 vs 6 patrol boats, 0 vs 22 mine warfare ships (Ireland vs Japan). Ireland's navy is officially the Irish Naval Service, while Japan's is the Japan Maritime Self-Defense Force.
Irish Naval Service 🇮🇪
| Official Name | Irish Naval Service |
| Total ships | 36 as of 2025 |
| Active ships | 31 as of 2025 |
| Naval Ensign |
|
Japan Maritime Self-Defense Force 🇯🇵
| Official Name | Japan Maritime Self-Defense Force |
| Total ships | 154 as of 2025 |
| Active ships | 154 as of 2025 |
| Naval Ensign |
|
Irish ships by category
| Ship category | Total | |
|---|---|---|
| Submarines | 0 | |
| Aircraft carriers | 0 | |
| Destroyers | 0 | |
| Cruisers | 0 | |
| Frigates | 0 | |
| Corvettes | 0 | |
| Coastal boats | 0 | |
| Patrol boats | 29 | |
| Amphibious ships | 0 | |
| Mine Warfare ships | 0 | |
| Cargo ships | 0 | |
| Support ships | 7 | |
| Other ships | 0 | |
Japanese ships by category
| Ship category | Total | |
|---|---|---|
| Submarines | 25 | |
| Aircraft carriers | 0 | |
| Destroyers | 46 | |
| Cruisers | 0 | |
| Frigates | 4 | |
| Corvettes | 0 | |
| Coastal boats | 0 | |
| Patrol boats | 6 | |
| Amphibious ships | 16 | |
| Mine Warfare ships | 22 | |
| Cargo ships | 0 | |
| Support ships | 10 | |
| Other ships | 25 | |
Ship Categories Radar Comparison
Frequently Asked Questions
Which country has more naval ships, Ireland or Japan?
Japan has a larger navy with 154 ships compared to Ireland's 36 ships.
Which navy has more submarines, Ireland or Japan?
Japan operates more submarines with 25 compared to Ireland's 0.
Which navy has more destroyers, Ireland or Japan?
Japan operates 46 destroyers compared to Ireland's 0.
Which navy has more frigates, Ireland or Japan?
Japan operates 4 frigates compared to Ireland's 0.
How do the Ireland and Japan navies compare in size?
Japan's navy is 4.3 times larger than Ireland's in terms of total ships (154 vs 36).