| ARDA | Variant | Designer | Players |
| st04 | Babylon 5 Diplomacy | Theo Kermanidis | 7 |
| rm82 | Backseat Driver Diplomacy | Simon Szykman | |
| rb27 | Balance of Power | A. Phillips | 7 |
| pb09 | Balkan Battle | Roland Isaksson | 2-3 |
| pb11 | Balkan Variant | Martin Behal | 7 |
| pb02 | Balkan War (II)-R | Schwartz and Nofi | 5 |
| pb03 | Balkan War Diplomacy (Balkan Wars I) | Charles Reinsel | 7 |
| pb06 | Balkan Wars III | Charles Reinsel and Fred Davis | 7 |
| pb07 | Balkan Wars IV | Charles Reinsel and Fred Davis | 7 |
| pb08 | Balkan Wars VI | Charles Reinsel, Fred Davis and Brad Wilson | 6 |
| ps02 | Baltic | David Caldwell | 4 |
| ps01 | Baltic Diplomacy | Robert Sacks | |
| ee03 | Banzai | Theirry Lucas and Pascal Dugros (Rules in French) | 7 |
| ee04 | Banzai II | Jean-Francois Mougard (Rules in English & French) | 7 |
| ma02 | Barbaria | Russell Tulp | 8 |
| ac16 | Barbaric Invasions | Jean-Philippe Musarella | 7 |
| ug01 | Barebones, Jeffersonian Diplomacy | Howard Mahler | 8 |
| fb02 | Barsoom | Lew Pulsipher | |
| fb01 | Barsoomian Blitz III | Ken St. Andre | 17 |
| fb03 | Barsoomian Blitz IV | Ken St. Andre (requires fb01) | 43 |
| ra01 | Baseball Diplomacy | Lew Pulsipher | 7 |
| vb08 | Basic Diplomacy | Lee Kendter, Jr | 7 |
| tw03 | Battle of the Five Armies | ??? | 7 |
| uu21 | Battleisle | René Krokowski and Frank Bacher | 6 |
| ce01 | Bawtinheimer 8-player Variant | Bob Bawtinheimer | 8 |
| tf01 | Beleriand | Steve Doubleday | 10 |
| rb81 | Berserker Diplomacy | Steve Doubleday | 7 |
| sg04 | Between Galaxies I | Lew Pulsipher | 2-9 |
| sg01 | Between Galaxies II | Lew Pulsipher | 5-7 |
| vb01 | Bharph Diplomacy | W. Johnson | 5 |
| pi02 | Bhearna Baoghail | Michael Mills | 7 |
| rb64 | Bid Diplomacy | Unknown | 7 |
| ym01 | Bidders Diplomacy | John Caruso | |
| bs01 | Bioplomacy | Al and Tom Burkacki | 10 |
| bs02 | Bioplomacy II | Glenn Overby and Al and Tom Burkacki | 10 |
| rn11 | Bio-War | Glenn Overby | 7 |
| rn41 | Bi-Plane Diplomacy | Stven Carlberg | 7 |
| rb04 | Bizarro Diplomacy (Anonymity IV) | Lew Pulsipher | 7 |
| xa01 | Black Angels | L. Pulsipher (CE 1) | 7 |
| fy03 | Black Blade | Rob Nott | 7 |
| rr01 | Black Hole Diplomacy I | Randolph Bart | 7 |
| rr09 | Black Hole Diplomacy II (Nelson-Drews Black Hole) | Rob Nelson and Harry Drews (requires rr01) | 7 |
| rr10 | Black Hole Diplomacy III | ?? | 7 |
| rr24 | Black Hole Diplomacy IV | ??? | 7 |
| rr16 | Black Plague Diplomacy | Glenn Overby | 7 |
| rd33 | Blind | ??? | 7 |
| rd14 | Blind Deadman | Robert J. Smith | 7 |
| rd08 | Blind Diplomacy | Lee Kendter, Sr. | 7 |
| rd18 | Blind Diplomacy (1801) | Doug Brown | 7 |
| rd24 | Blind Diplomacy II | Eric Klien | 7 |
| rm14 | Blitzkrieg Diplomacy I | Buddy Tretick | 7 |
| rm48 | Blitzkrieg Diplomacy II | John Norris | 7 |
| rr12 | Blob Diplomacy | Dave Barlow | 7 |
| fm04 | Blood & Gore Diplomacy | Dan Horning | |
| pg02 | Blood & Iron | Tom Swider | 5 |
| rn16 | Blowup | Nelson Millar and Ron Brown | 7 |
| pg03 | Blut und Eisen | Thomas van Dam | 7 |
| dc03 | Boer Diplomacy | Martin Behal | 6 |
| rm02 | Bolshevik I | Hartley Patterson | 8 |
| rs21 | Bolshevik II | Patterson and Martin Janta-Polczynski | 8 |
| rs22 | Bolshevik III | Patterson and Martin Janta-Polczynski | 8 |
| rn32 | Bomber Diplomacy | Derick Green | 7 |
| ys03 | Bourse I | Allan B Calhamer, John McCallum and Don Miller | 0n |
| ys04 | Bourse II | Allan B Calhamer, John McCallum and Don Miller | 0n |
| ys05 | Bourse III | Richard Walkerdine, Allan B Calhamer, John McCallum and Don Miller | 0n |
| rk02 | Brazilian Variant (1914) (In Portuguese) | Sold in Brazil by Grow Productos (Pirated) (plus seven page English translation) | 7 |
| pe26 | Bretwalda I | Geoff Bache | 9 |
| pe27 | Bretwalda II | Geoff Bache | 9 |
| rb16 | Bridge Diplomacy | Konrad Baumeister | 7 |
| cg02 | Britain | Danny Loeb | 7 |
| pe20 | British Brewer I | David Rothery | 5 |
| rb58 | British Gunboat | Martin Hansen | 7 |
| Pe30 | British Isles Regional Diplomacy “BIRD”) | Andy Tomlinson | 7 |
| pe14 | Brum Wars | Pete Tulk | 9 |
| pb05 | Bucharest I | Chris Northcott | 5 |
| pb04 | Bucharest II | Chris Northcott and Fred Davis | 5 |
| rt09 | Bud–Bop | Tom Swider | 6 |
| ei03 | Buddha Diplomacy | Larry Peery | 5 |
| rb05 | Bum’s Rush | A. Phillips (CE 1) | 7 |
| re18 | Business Diplomacy | Geoff Challinger (?) | 7 |