Note: There is no long historical list because the U.S. has rarely directly bombed Iran. Most confirmed usage comes from the 2025–2026 conflict.

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1. GBU-57 Massive Ordnance Penetrator (MOP)

• Also known as a “bunker buster bomb”
• Weight: ~30,000 pounds (13,600 kg)
• Used to destroy deep underground nuclear facilities

✔️ Used in strikes on:

• Fordow nuclear site
• Natanz facility

➡️ Around 14 bunker-buster bombs were reportedly dropped

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2. GBU-31 / GBU-32 / GBU-38 (JDAM Bombs)

• GPS-guided precision bombs
• Known as Joint Direct Attack Munitions (JDAMs)

✔️ Usage:

• About 250 JDAM bombs used in early stages of the war

➡️ Purpose:

• Target military bases, infrastructure, and strategic sites

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3. General “Bunker-Buster” Bombs (Category)

• Includes multiple deep-penetration bombs
• Designed to destroy hardened underground structures

✔️ Delivered by:

• B-2 stealth bombers

➡️ Used extensively in nuclear facility attacks

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4. Precision-Guided Bombs (Various Types)

• Used in large quantities during airstrikes

✔️ Around:

• 75 precision bombs dropped in a single operation

➡️ These include:

• Laser-guided bombs
• GPS-guided bombs

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5. Cluster Munitions (Reported)

• Bombs that release multiple smaller submunitions

⚠️ Reports suggest:

• The U.S. may have used cluster munitions in Iran during the conflict

➡️ These are controversial due to civilian risk

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Other Weapons Used (Not Bombs but Important)

Although your question is about bombs, it’s important to note the U.S. also used:

Tomahawk Cruise Missiles

• Fired from submarines and ships
• Used to strike targets like Isfahan

HIMARS Rocket Systems

• Land-based rocket artillery
• Used in large-scale strikes

Drones (MQ-9 Reaper, LUCAS)

• Used for surveillance and attacks

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Key Facts About U.S. Bombing in Iran

• Over 3,000 guided munitions used in early conflict phases
• More than 11,000 targets struck in one month
• Focus was mainly on:
  • Nuclear facilities
  • Missile sites
  • Military infrastructure

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Conclusion

The list of U.S. bombs used on Iran is relatively short but highly advanced, focusing on precision and deep-penetration weapons rather than traditional large-scale bombing.

The most important bombs include:

• GBU-57 Massive Ordnance Penetrator
• JDAM series bombs (GBU-31/32/38)
• Other precision-guided and bunker-buster bombs

Modern warfare in this conflict shows a shift toward:

• High-tech precision strikes
• Fewer but more powerful bombs
• Targeted destruction instead of widespread bombing