| City | Nickname | Abbrv |
| Annapolis | Admirals | AA |
| Ashburn | Hot Rocks | AH |
| Allegheny | Innocents | AI |
| Annandale | Agates | AN |
| Arlington | Railsplitters | AR |
| Boston | Africans | BA |
| Boston | Badgers | BD |
| Beacon | Braves | BB |
| Binghamton | Crabbs | BC |
| Bergen | Barflies | BE |
| Birch Inn | Brewers | BH |
| Birdsnest | Bombers | BI |
| Berkshire | Badgers | BK |
| Boulder Bluff | Bishops | BL |
| Baltimore | BaySox | BM |
| Binghamton | Triplets | BN |
| Baltimore | Spiders | BO |
| Boston | Beaneaters | BS |
| Buffalo | Mules | BU |
| Boston | Athletics | BZ |
| Bradenton | Buckeyes | BR |
| Bethesda | Bambinos | BT |
| Brooklyn | Legends | BY |
| Covington | Buccs | CB |
| Chesapeake | Regnads | CH |
| Cleveland | Naps | CL |
| Connecticut | Cheetahs | CO |
| Chicago Ridge | SOB's | CR |
| Cleveland | Spiders | CS |
| Eastport | Athletics | EA |
| Evanston | Bees | EB |
| Endwell | Eartheaters | EE |
| Edinburg | Scotsmen | ES |
| Fargo | Fungoes | FF |
| Fortney | Gators | FG |
| Florida | Panthers | FP |
| Farmington | River Rats | FR |
| Fresno | Suns | FS |
| Gettysburg | Generals | GE |
| Greylock | Gators | GG |
| Gettysburg | Lightning | GL |
| Grand Raoids | Chicks | GC |
| Grand Rapids | Wolverines | GW |
| Grandview | Stars | GR |
| Gunpowder | Ironmen | GU |
| Hamilton | EH's | HA |
| Harbor Beach | Combers | HB |
| Houston | Cougars | HC |
| Hilton Head | Hammerin' Hedgehogs | HI |
| Hereford | Highlanders | HH |
| Hillsboro | Jesters | HJ |
| Herndon | Mountain Boys | HM |
| Horseshoe Bay | Polos | HO |
| Hyde Park | VitaMen | HP |
| Huntington Beach | Surfers | HU |
| Hoboken | Zephyrs | HZ |
| Innisfree | Dukes | ID |
| Kensington | Knights | KE |
| Kilkenny | Gaelics | KI |
| Kennett | Komets | KK |
| Lawton | Angels | LA |
| Lake Gardner | Knights | LG |
| Leesville | Hurricanes | LH |
| Long Island | Islanders | LI |
| London | Lycanthropes | LL |
| Libertyville | Patriots | LP |
| London | Tecumsehs | LT |
| Miller Court | Jesters | MC |
| Midlothian | Mariners | MD |
| Mexicali | Mallards | ME |
| Mt. Greenwood | Foresters | MG |
| Mimosa | Mirthmakers | MI |
| Meadow | Larks | ML |
| Mt. Prospect | Tigers | MP |
| Morgantown | Raiders | MR |
| Meadowlands | Marauders | MS |
| Meadowlands | Spartans | MS |
| Magic Mountain | Trolls | MT |
| North Adams | Beavers | NA |
| Newark | Eagles | NE |
| Niagara Falls | Toxins | NF |
| Newton | Buccs | NB |
| Newton | Indians | NI |
| Norwood | Naturals | NN |
| Northeast | Numen | NO |
| Norfolk | Pilots | NP |
| Newmarket | EH's | NW |
| New York | Woodchoppers | NY |
| New York | Daredevils | NY |
| Ocala | Egrets | OE |
| Pittsburgh | Alleghenies | PA |
| Philadelphia | Bell | PB |
| Philadelphia | Flounders | PF |
| Prospect Heights | Paladins | PH |
| Pennsylvania | Keystones | PK |
| Portsmouth | Pubdwellers | PO |
| Potsdam | Penguins | PP |
| Pittsburgh | Rebels | PR |
| Raritan | Rags | RA |
| Rhode Island | Hawks | RH |
| Rapidan | Rapids | RI |
| Rolling Meadow | Mustangs | RM |
| Rochester | Cheetahs | RO |
| Rockford | Patriots | RP |
| Roxbury | Red Sox | RR |
| Riverrun | Twins | RT |
| Ruskin | Rhinos | RU |
| Santa Cruz | Seals | SA |
| Santa Barbara | Iron Dukes | SB |
| Spring CIty | Microbrewers | SC |
| San Francisco | D'Oros | SF |
| Shiloh | Spurs | SH |
| Silver Spring | Senators | SI |
| Sacramento | Solons | SM |
| South Starrucca | Ainspans | SO |
| St. Petersburg | Czars | SP |
| Springfield | Rifles | SR |
| Scranton | Spanish Flies | SS |
| Sterling | Shillelaghs | ST |
| Susquehanna | Knights | SU |
| Siouxland | Explorers | SX |
| Tiger Bay | Chorus Frogs | TB |
| Texas | Giants | TG |
| Turiin | Mountaineers | TU |
| Toronto | Nationals | TN |
| Village | Bluenotes | VB |
| Waukesha | Freemen | WA |
| Spring City | Microbrewers | WA |
| West Coast | Wrecking Crew | WC |
| Winnebago | Indians | WI |
| Western | Marvels | WM |
| Woebegone | Wombats | WO |
| Western Springs | Rapids | WS |
| Wilderness | Wraiths | WW |
| Auto | Replay | XX |