List of United States Naval reactors

List of United States Naval reactors is a comprehensive list of all naval reactors designed, built, or used by the United States Navy.

Reactor designations
Each nuclear reactor design is given a three-character designation consisting of a letter representing the type of ship the reactor is intended for, a consecutive generation number, and a letter indicating the reactor's designer.

Ship types:
 * "A" – aircraft carrier
 * "C" – cruiser
 * "D" – destroyer
 * "S" – submarine

Contracted designers:
 * "B" – Bechtel
 * "C" – Combustion Engineering
 * "G" – General Electric
 * "W" – Westinghouse

Nuclear reactors of the United States Navy
Naval reactors of the United States Navy, listed alphabetically by ship type.

Aircraft carrier reactors

 * A1W reactor
 * land-based prototype for USS Enterprise (CVN-65); located at Naval Reactors Facility
 * A2W reactor
 * USS Enterprise (CVN-65)
 * A3W reactor
 * designed for USS John F. Kennedy (CV-67), but never installed
 * A4W reactor
 * Nimitz-class aircraft carriers
 * A1B reactor
 * Gerald R. Ford-class aircraft carriers

Cruiser reactors

 * C1W reactor
 * Long Beach-class cruiser

Destroyer reactors

 * D1G reactor
 * land-based prototype for Bainbridge-class cruiser; located at the Kesselring site
 * D2G reactor
 * Bainbridge-class cruiser
 * Truxtun-class cruiser
 * California-class cruiser
 * Virginia-class cruiser

Submarine reactors

 * NR-1 reactor
 * one-of-a-kind reactor built for the U.S. Navy research submarine NR-1
 * S1C reactor
 * land-based prototype for USS Tullibee (SSN-597); located at Windsor, Connecticut
 * S1G reactor
 * land-based prototype for USS Seawolf (SSN-575); located at Kesselring site
 * S1W reactor
 * land-based prototype for USS Nautilus (SSN-571); located at Naval Reactors Facility
 * S2C reactor
 * USS Tullibee (SSN-597)
 * S2G reactor
 * USS Seawolf (SSN-575)
 * S2W reactor
 * USS Nautilus (SSN-571)
 * S2Wa reactor
 * replacement reactor for USS Seawolf (SSN-575)
 * S3G reactor
 * land-based prototype for USS Triton (SSN-586); located at Kesselring site
 * S3W reactor
 * USS Skate (SSN-578)
 * USS Sargo (SSN-583)
 * USS Halibut (SSGN-587)
 * S4G reactor
 * USS Triton (SSRN-586)
 * S4W reactor
 * USS Swordfish (SSN-579)
 * USS Seadragon (SSN-584)
 * S5G reactor
 * A land-based prototype located at Naval Reactors Facility, and
 * USS Narwhal (SSN-671)
 * S5W reactor
 * Skipjack-class submarine (SSN-585 class)
 * George Washington-class submarine (SSBN-598 class)
 * Thresher/Permit-class submarine (SSN-593/SSN-594 class)
 * Ethan Allen-class submarine (SSBN-608 class)
 * Lafayette-class submarine (SSBN-616 class)
 * James Madison-class submarine (SSBN-627 class)
 * Benjamin Franklin-class submarine (SSBN-640 class)
 * Sturgeon-class submarine (SSN-637 class)
 * USS Parche (SSN-683)
 * USS Glenard P. Lipscomb (SSN-685)
 * S6G reactor
 * Los Angeles-class submarine (SSN-688 class)
 * S6W reactor
 * Seawolf-class submarine (SSN-21 class)
 * S7G reactor
 * land-based prototype (Modifications and Additions to a Reactor Facility or "MARF") located at the Kesselring site
 * S8G reactor
 * Ohio-class submarines (SSBN-726 class)
 * S9G reactor
 * Virginia-class submarine (SSN-774 class)
 * S1B reactor
 * Columbia-class submarine (SSBN-826 class)