This list contains comic and anime conventions in March located in the United States. I searched the internet for as many comic and anime conventions as I could find. Check the conventions’ websites to learn more about them. Always double check any dates because the conventions could change them.
| Convention Name | State | Dates |
| Capitola Collectacon | California | March 4-6 |
| BX-Comic Book Show | New York | March 5 |
| Fairfax Comic Con | Virginia | March 5 |
| Kokomo-Con | Indiana | March 5 |
| Hill County Comic Con | Texas | March 5-6 |
| PeoriaCon | Illinois | March 5-6 |
| Zolocon | Pennsylvania | March 5-6 |
| Quad Con | Nebraska | March 5-6 |
| SW-Floridacon | Florida | March 6 |
| Buckeye Comic Con | Ohio | March 6 |
| Madison Comic Con | Wisconsin | March 6 |
| Super Retro-Con | Florida | March 6 |
| All-Con | Texas | March 10-13 |
| North East Comic Con & Collectibles Extravaganza | Massachusetts | March 11-13 |
| Collective Con | Florida | March 11-13 |
| TF Con Los Angeles | California | March 11-13 |
| Annapolis Comic Con | Maryland | March 12 |
| Galactic Con | Delaware | March 12 |
| Pulp Adventure Con | Florida | March 12 |
| FantastiCon | Ohio | March 12-13 |
| Wintercon | New York | March 12-13 |
| Quad Con | Illinois | March 12-13 |
| BrickUniverse Lego Fan Convention | Oklahoma | March 12-13 |
| SAC Comic-Con | California | March 13 |
| Retro Expo | Texas | March 18-19 |
| Triad Anime Con | North Carolina | March 18-20 |
| Permian Basin Comic Con | Texas | March 18-20 |
| EvilleCon | Indiana | March 18-20 |
| GalaxyCon Richmond | Virginia | March 18-20 |
| Fandemic Dead | Georgia | March 18-20 |
| Quad Con | Iowa | March 19 |
| Carrier Con | California | March 19 |
| Clarksvillecon | Tennessee | March 19 |
| Power Con | South Carolina | March 19 |
| NWA Comic Con | Arkansas | March 19-20 |
| Cleveland Comic Book & Nostalgia Festival | Ohio | March 20 |
| The Uncanny Nashville Comic and Toy Day | Tennessee | March 20 |
| Frederick Comic Con | Maryland | March 21 |
| Lexington Comic Con | Kentucky | March 24-27 |
| Zenkaikon | Pennsylvania | March 25-27 |
| Mystic Con | Florida | March 26 |
| Toyzilla Swap Meet | California | March 26 |
| Big Apple Con | New York | March 26 |
| SwampCon | Florida | March 26-27 |
| Comic Book & Non-Sports Card Show | Virginia | March 27 |
| FT-LauderdaleCon | Florida | March 27 |
| Quad Con | Missouri | March 27 |
Am I missing any comic and anime conventions? Let me know in the comments.