NOTE: This is an early version bashed together from various sources listed in the bibliograpy.

Aircraft Cancellations

Consolidated B-32 “Dominator” - 1,885. cancelled in September/October 1945.
North American P-51H “Mustang” - 1,449 cancelled after V-J Day.
North American P-51M “Mustang” - 1,628 cancelled after V-J Day. Single plane built.
North American P-51L “Mustang” - 1,700 cancelled after V-J Day. Never Built.
Boeing B-29 “Superfortress” - 5,092 of multiple variants cancelled September 1945.
Republic P-47N “Thunderbolt” – 5,934 cancelled on V-J Day.
Lockheed P-38L “Lightning” – 3,267 cancelled after V-J Day.
Bell P-63E “Kingcobra” - 2,930 cancelled.

Submarine Cancellations

SS-353 Dugong (Balao) - Cancelled 23 Oct 1944.
SS-354 Eel (Balao) - Cancelled 23 Oct 1944.
SS-355 Espada (Balao) - Cancelled 23 Oct 1944.
SS-356 Jawfish (Balao) - Cancelled 23 Oct 1944.
SS-357 Ono (Balao) - Cancelled 23 Oct 1944.
SS-358 Garlopa (Balao) - Cancelled 23 Oct 1944.
SS-359 Garruda (Balao) - Cancelled 23 Oct 1944.
SS-360 Goldring (Balao) - Cancelled 23 Oct 1944.
SS-379 Needlefish (Balao) – Cancelled 29 July 1944.
SS-380 Nerka (Balao) – Cancelled 29 July 1944.
SS-427 - Turbot (Tench) - Cancelled 12 Aug 1945.
SS-428 - Ulua (Tench) - Suspended 12 Aug 1945.
SS-429 - Unicorn (Tench) - Cancelled 29 July 1944.
SS-430 - Vandace (Tench) - Cancelled 29 July 1944.
SS-431 - Walrus (Tench) - Cancelled 29 July 1944.
SS-432 - Whitefish (Tench) - Cancelled 29 July 1944.
SS-433 - Whiting (Tench) - Cancelled 29 July 1944.
SS-434 - Wolffish (Tench) - Cancelled 29 July 1944.
SS-437 - Walrus (Tench) - Suspended 30 January 1946.
SS-438 - (Unnamed Tench) – Cancelled 29 July 1944
SS-439 - (Unnamed Tench) – Cancelled 29 July 1944
SS-440 - (Unnamed Tench) – Cancelled 29 July 1944
SS-441 - (Unnamed Tench) – Cancelled 29 July 1944
SS-442 - (Unnamed Tench) – Cancelled 29 July 1944
SS-443 - (Unnamed Tench) – Cancelled 29 July 1944
SS-444 - (Unnamed Tench) – Cancelled 29 July 1944
SS-445 - (Unnamed Tench) – Cancelled 29 July 1944
SS-446 - (Unnamed Tench) – Cancelled 29 July 1944
SS-447 - (Unnamed Tench) – Cancelled 29 July 1944
SS-448 - (Unnamed Tench) – Cancelled 29 July 1944
SS-449 - (Unnamed Tench) – Cancelled 29 July 1944
SS-450 - (Unnamed Tench) – Cancelled 29 July 1944
SS-451 - (Unnamed Tench) – Cancelled 29 July 1944
SS-452 - (Unnamed Tench) – Cancelled 29 July 1944
SS-453 - (Unnamed Tench) – Cancelled 29 July 1944
SS-454 - (Unnamed Tench) – Cancelled 29 July 1944
SS-455 - (Unnamed Tench) – Cancelled 29 July 1944
SS-456 - (Unnamed Tench) – Cancelled 29 July 1944
SS-457 - (Unnamed Tench) – Cancelled 29 July 1944
SS-458 - (Unnamed Tench) – Cancelled 29 July 1944
SS-459 - (Unnamed Tench) – Cancelled 29 July 1944
SS-460 - (Unnamed Tench) – Cancelled 29 July 1944
SS-461 - (Unnamed Tench) – Cancelled 29 July 1944
SS-462 - (Unnamed Tench) – Cancelled 29 July 1944
SS-463 - (Unnamed Tench) – Cancelled 29 July 1944
SS-464 - (Unnamed Tench) – Cancelled 29 July 1944
SS-465 - (Unnamed Tench) – Cancelled 29 July 1944
SS-466 - (Unnamed Tench) – Cancelled 29 July 1944
SS-467 - (Unnamed Tench) – Cancelled 29 July 1944
SS-468 - (Unnamed Tench) – Cancelled 29 July 1944
SS-469 - (Unnamed Tench) – Cancelled 29 July 1944
SS-470 - (Unnamed Tench) – Cancelled 29 July 1944
SS-471 - (Unnamed Tench) – Cancelled 29 July 1944
SS-472 - (Unnamed Tench) – Cancelled 29 July 1944
SS-473 - (Unnamed Tench) – Cancelled 29 July 1944
SS-474 - (Unnamed Tench) – Cancelled 29 July 1944
SS-491 - Pompano (Tench) - Cancelled 7 Jan 1946
SS-492 - Grayling (Tench) - Cancelled 7 Jan 1946
SS-493 - Needlefish (Tench) - Cancelled 7 Jan 1946
SS-494 – Sculpin (Tench) - Cancelled 7 Jan 1946
SS-495 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-496 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-497 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-498 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-499 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-500 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-501 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-502 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-503 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-504 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-505 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-506 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-507 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-508 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-509 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-510 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-511 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-512 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-513 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-514 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-515 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-516 - Wahoo (Tench) - Cancelled 7 Jan 1946
SS-517 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-518 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-519 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-520 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-521 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-526 - Dorado (Tench) - Cancelled 7 Jan 1946
SS-527 - Comber (Tench) - Cancelled 7 Jan 1946
SS-528 - Sea Panther (Tench) - Cancelled 7 Jan 1946
SS-529 – Tibourn (Tench) - Cancelled 7 Jan 1946
SS-530 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-531 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-532 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-533 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-534 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-535 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-536 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-537 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-538 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-539 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-540 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-541 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-542 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-543 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-544 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-545 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-546 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-547 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-548 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-549 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-550 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-551 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-552 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-553 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-554 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-556 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-557 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-558 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-559 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-560 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-561 - (Unnamed Tench) - Cancelled 7 Jan 1946
SS-562 - (Unnamed Tench) - Cancelled 7 Jan 1946

Destroyer Escort Cancellations

To be completed later.

Destroyer Cancellations

To be completed later.

Cruiser Cancellations

CL-84 (Unnamed Cleveland) – Cancelled 16 December 1940 to allow shipyard to concentrate on Destroyers.
CL-94 Youngstown (Cleveland) – Cancelled 12 August 1945.
CL-108 Newark (Fargo) – Cancelled 12 August 1945 at 67.8% complete.
CL-109 New Haven (Fargo) - Cancelled 12 August 1945
CL-110 Buffalo (Fargo) - Cancelled 12 August 1945
CL-111 Wilmington (Fargo) – Cancelled 12 August 1945
CL-112 Vallejo (Fargo) – Cancelled 5 October 1944 due to labor problems which would delay completion to '47
CL-113 Helena (Fargo) – Cancelled 5 October 1944 due to labor problems which would delay completion to '47
CL-114 (Unnamed Fargo) – Cancelled 5 October 1944 due to labor problems which would delay completion to '47
CL-115 Roanoke (Fargo) – Cancelled 5 October 1944 due to labor problems which would delay completion to '47
CL-116 Tallahasee (Fargo) – Cancelled 12 August 1945
CL-117 Cheyenne (Fargo) – Cancelled 12 August 1945
CL-118 Chattanooga (Fargo) – Cancelled 12 August 1945
CA-126 Cambridge (Baltimore) – Cancelled 12 August 1945
CA-127 Bridgeport (Baltimore) – Cancelled 12 August 1945
CA-128 Kansas City (Baltimore) – Cancelled 12 August 1945
CA-129 Tulsa (Baltimore) – Cancelled 12 August 1945
CA-137 Norfolk (Baltimore) – Cancelled 12 August 1945
CA-138 Scranton (Baltimore) – Cancelled 12 August 1945
CA-140 Dallas (Salem) - Cancelled 6 June 1946
CA-141 (Unnamed Salem) – Cancelled 7 January 1946
CA-142 (Unnamed Salem) – Cancelled 12 August 1945
CA-143 (Unnamed Salem) – Cancelled 12 August 1945
CL-146 Vallejo (Worchester) – Cancelled 12 August 1945
CL-147 Gary (Worchester) – Cancelled 12 August 1945
CA-149 (Unnamed Salem) – Cancelled 12 August 1945
CA-149 (Unnamed Salem) – Cancelled 12 August 1945
CA-149 (Unnamed Salem) – Cancelled 12 August 1945
CA-150 (Unnamed Salem) – Cancelled 28 March 1945
CA-151 (Unnamed Salem) – Cancelled 28 March 1945
CA-152 (Unnamed Salem) – Cancelled 28 March 1945
CA-153 (Unnamed Salem) – Cancelled 28 March 1945
CL-154 (Unnamed Worchester) – Cancelled 26 March 1945.
CL-154 (Unnamed Worchester) – Cancelled 26 March 1945.
CL-155 (Unnamed Worchester) – Cancelled 26 March 1945.
CL-156 (Unnamed Worchester) – Cancelled 26 March 1945.
CL-157 (Unnamed Worchester) – Cancelled 26 March 1945.
CL-158 (Unnamed Worchester) – Cancelled 26 March 1945.
CL-159 (Unnamed Worchester) – Cancelled 26 March 1945.

Battlecruiser Cancellations

CB-3 Hawaii (Alaska) – Suspended April 1942, resumed, suspended again on 17 February 1947 at 82.4% complete.
CB-4 Phillipines (Alaska) – Suspended April 1943, cancelled 24 June 1943.
CB-5 Puerto Rico (Alaska) – Suspended April 1943, cancelled 24 June 1943.
CB-6 Samoa (Alaska) – Suspended April 1943, cancelled 24 June 1943.

Battleship Cancellations

BB-65 Illinois (Iowa) - Cancelled 11 August 1945 when 22% complete
BB-66 Kentucky (Iowa) - Suspended June 1942, work resumed on and off until finally cancelled 22 January 1950.
BB-67 Montana (Montana) – Suspended April 1942, cancelled 21 July 1943.
BB-68 Ohio (Montana) – Suspended April 1942, cancelled 21 July 1943.
BB-69 Maine (Montana) – Suspended April 1942, cancelled 21 July 1943.
BB-70 New Hampshire (Montana) – Suspended April 1942, cancelled 21 July 1943.
BB-71 Louisiana (Montana) – Suspended April 1942, cancelled 21 July 1943.

Carrier Cancellations

CV-35 Reprisal (Long Hull Essex) – Cancelled 11 August 1945 at 52.3% complete.
CV-44 (Unnamed Midway) – Cancelled 11 January 1943 due to lack of building dock space.
CV-46 Iwo Jima (Long Hull Essex) – Cancelled 11 August 1945
CV-50 (Unnamed Long-Hull Essex) – Cancelled 28 March 1945.
CV-51 (Unnamed Long-Hull Essex) – Cancelled 28 March 1945.
CV-52 (Unnamed Long-Hull Essex) – Cancelled 28 March 1945.
CV-53 (Unnamed Long-Hull Essex) – Cancelled 28 March 1945.
CV-54 (Unnamed Long-Hull Essex) – Cancelled 28 March 1945.
CV-55 (Unnamed Long-Hull Essex) – Cancelled 28 March 1945.
CVB-56 (Unnamed Midway) – Cancelled 28 March 1945
CVB-57 (Unnamed Midway) – Cancelled 28 March 1945
CVE-124 Bastogne (Commencement Bay) - Suspended and scrapped beginning 12 August 1945.
CVE 125 Eniwetok (Commencement Bay) – Suspended and scrapped beginning 12 August 1945.
CVE 126 Lingayen (Commencement Bay) – Suspended and scrapped beginning 12 August 1945.
CVE 127 Okinawa (Commencement Bay) – Suspended and scrapped beginning 12 August 1945.
CVE-128 (Unnamed ship and class; basically an improved Commencement Bay) – Cancelled 11 August 1945.
CVE-129 (Unnamed ship and class; basically an improved Commencement Bay) – Cancelled 11 August 1945.
CVE-130 (Unnamed ship and class; basically an improved Commencement Bay) – Cancelled 11 August 1945.
CVE-131 (Unnamed ship and class; basically an improved Commencement Bay) – Cancelled 11 August 1945.
CVE-132 (Unnamed ship and class; basically an improved Commencement Bay) – Cancelled 11 August 1945.
CVE-133 (Unnamed ship and class; basically an improved Commencement Bay) – Cancelled 11 August 1945.
CVE-134 (Unnamed ship and class; basically an improved Commencement Bay) – Cancelled 11 August 1945.
CVE-135 (Unnamed ship and class; basically an improved Commencement Bay) – Cancelled 11 August 1945.
CVE-136 (Unnamed ship and class; basically an improved Commencement Bay) – Cancelled 11 August 1945.
CVE-137 (Unnamed ship and class; basically an improved Commencement Bay) – Cancelled 11 August 1945.
CVE-138 (Unnamed ship and class; basically an improved Commencement Bay) – Cancelled 11 August 1945.
CVE-139 (Unnamed ship and class; basically an improved Commencement Bay) – Cancelled 11 August 1945.

Bibliography
Various “Warbird Techs”
U.S. Submarines Through 1945 by Norman Friedman
www.hazegray.org
www.globalsecurity.org