Most widely operated air-defense systems
55 of the 83 air-defense systems in the WeaponSpecs database publish an operator countries figure, and the top 25 are listed here. Ranked on the published number alone, highest first, with no weighting and no composite score. The 28 air-defense systems with no published figure are not ranked, absent data is never treated as a low value.
| # | System | Operator countries | Source |
|---|---|---|---|
| 1 | 9K33 Osa † | 25 | reference ↗ checked 2026-07-02 |
| 2 | 9K35 Strela-10 † | 20 | reference ↗ checked 2026-07-02 |
| 3 | Patriot PAC-3 | 19 | reference ↗ checked 2026-07-01 |
| 4 | RBS 70 | 19 | reference ↗ checked 2026-07-02 |
| 5 | Patriot PAC-2 | 13 | reference ↗ checked 2026-07-02 |
| 6 | NASAMS | 12 | reference ↗ checked 2026-07-01 |
| 7 | Buk-M2 † | 10 | reference ↗ checked 2026-07-02 |
| 8 | Patriot GEM-T | 10 | reference ↗ checked 2026-07-02 |
| 9 | SPYDER | 10 | reference ↗ checked 2026-07-02 |
| 10 | Pantsir-S1 † | 8 | reference ↗ checked 2026-07-02 |
| 11 | S-300PMU2 Favorit † | 8 | reference ↗ checked 2026-07-02 |
| 12 | Pantsir-SM † | 6 | reference ↗ checked 2026-07-02 |
| 13 | VL MICA | 6 | reference ↗ checked 2026-07-02 |
| 14 | IRIS-T SLM | 5 | reference ↗ checked 2026-07-01 |
| 15 | THAAD | 5 | reference ↗ checked 2026-07-01 |
| 16 | Tor-M2 † | 5 | reference ↗ checked 2026-07-02 |
| 17 | HQ-7 † | 5 | reference ↗ checked 2026-07-02 |
| 18 | Iron Dome | 4 | reference ↗ checked 2026-07-02 |
| 19 | S-400 Triumf † | 4 | reference ↗ checked 2026-07-01 |
| 20 | IRIS-T SLS | 4 | reference ↗ checked 2026-07-02 |
| 21 | Gepard | 4 | reference ↗ checked 2026-07-02 |
| 22 | SAMP/T (Aster 30) | 3 | reference ↗ checked 2026-07-01 |
| 23 | Barak 8 | 3 | reference ↗ checked 2026-07-02 |
| 24 | Land Ceptor (CAMM) | 3 | reference ↗ checked 2026-07-02 |
| 25 | HQ-16 † | 3 | reference ↗ checked 2026-07-02 |
Compiled from public manufacturer, defense-ministry and reference sources. Published defense figures are approximations and are often stated under different conditions, so treat this ordering as directional rather than a tested result. A board is only generated where at least 5 systems in the class publish the figure. How we compile specs →
Other air-defense systems rankings
Operator countries in other classes