| Name | ECO | Main line length |
|---|
| French Defense | C00 | 2 plies |
| French Defense: Normal Variation | C00 | 3 plies |
| French Defense: La Bourdonnais Variation | C00 | 3 plies |
| French Defense: Banzai-Leong Gambit | C00 | 3 plies |
| French Defense: Steinitz Attack | C00 | 3 plies |
| French Defense: Horwitz Attack | C00 | 3 plies |
| French Defense: Steiner Variation | C00 | 3 plies |
| French Defense: King's Indian Attack | C00 | 3 plies |
| French Defense: Réti-Spielmann Attack | C00 | 3 plies |
| French Defense: Queen's Knight | C00 | 3 plies |
| French Defense: Knight Variation | C00 | 3 plies |
| French Defense: Bird Invitation | C00 | 3 plies |
| French Defense: Chigorin Variation | C00 | 3 plies |
| French Defense: King's Indian Attack, Franco-Hiva Gambit | C00 | 4 plies |
| French Defense: St. George Defense | C00 | 4 plies |
| French Defense: Franco-Sicilian Defense | C00 | 4 plies |
| French Defense: Franco-Hiva Gambit | C00 | 4 plies |
| French Defense: Baeuerle Gambit | C00 | 4 plies |
| French Defense | C00 | 4 plies |
| French Defense: Knight Variation, Franco-Hiva Gambit | C00 | 4 plies |
| French Defense: Mediterranean Defense | C00 | 4 plies |
| French Defense: St. George Defense, Three Pawn Attack | C00 | 5 plies |
| French Defense: Diemer-Duhm Gambit | C00 | 5 plies |
| French Defense: Advance Variation | C02 | 5 plies |
| French Defense: Pelikan Variation | C00 | 5 plies |
| French Defense: Horwitz Attack, Papa-Ticulat Gambit | C00 | 5 plies |
| French Defense: Alapin Gambit | C00 | 5 plies |
| French Defense: Morphy Gambit | C00 | 5 plies |
| French Defense: Perseus Gambit | C00 | 5 plies |
| French Defense: Schlechter Variation | C00 | 5 plies |
| French Defense: Tarrasch Variation | C03 | 5 plies |
| French Defense: Paulsen Variation | C10 | 5 plies |
| French Defense: Banzai-Leong Gambit, Pinova Gambit | C00 | 5 plies |
| French Defense: Franco-Hiva Gambit Accepted | C00 | 5 plies |
| French Defense: Two Knights Variation | C00 | 5 plies |
| French Defense: Exchange Variation | C01 | 5 plies |
| French Defense: St. George Defense, Sanky-George Gambit | C00 | 6 plies |
| French Defense: Advance Variation | C02 | 6 plies |
| French Defense: Advance Variation, Extended Bishop Swap | C02 | 6 plies |
| French Defense: Tarrasch Variation, Modern System | C03 | 6 plies |
| French Defense: Tarrasch Variation, Haberditz Variation | C03 | 6 plies |
| French Defense: Tarrasch Variation, Open System | C07 | 6 plies |
| French Defense: Marshall Gambit | C10 | 6 plies |
| French Defense: Diemer-Duhm Gambit Accepted | C00 | 6 plies |
| French Defense: Tarrasch Variation, Guimard Defense | C03 | 6 plies |
| French Defense: Tarrasch Variation, Morozevich Variation | C03 | 6 plies |
| French Defense: Tarrasch Variation, Closed Variation | C05 | 6 plies |
| French Defense: Hecht-Reefschläger Variation | C10 | 6 plies |
| French Defense: Classical Variation | C11 | 6 plies |
| French Defense: Winawer Variation | C15 | 6 plies |
| French Defense: La Bourdonnais Variation, Reuter Gambit | C00 | 6 plies |
| French Defense: Rubinstein Variation | C10 | 6 plies |
| French Defense: Advance Variation, Frenkel Gambit | C02 | 7 plies |
| French Defense: Advance Variation | C02 | 7 plies |
| French Defense: Wing Gambit | C00 | 7 plies |
| French Defense: Advance Variation, Nimzowitsch System | C02 | 7 plies |
| French Defense: Advance Variation, Nimzowitsch Attack | C02 | 7 plies |
| French Defense: Tarrasch Variation, Open System, Süchting Line | C07 | 7 plies |
| French Defense: Advance Variation, Steinitz Variation | C02 | 7 plies |
| French Defense: Classical Variation, Steinitz Variation | C11 | 7 plies |
| French Defense: Winawer Variation, Advance Variation | C16 | 7 plies |
| French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | C07 | 7 plies |
| French Defense: Henneberger Variation | C11 | 7 plies |
| French Defense: Classical Variation, Swiss Variation | C11 | 7 plies |
| French Defense: Classical Variation | C11 | 7 plies |
| French Defense: Winawer Variation, Fingerslip Variation | C15 | 7 plies |
| French Defense: Winawer Variation, Alekhine-Maróczy Gambit | C15 | 7 plies |
| French Defense: Carlson Gambit | C00 | 7 plies |
| French Defense: Exchange Variation, Monte Carlo Variation | C01 | 7 plies |
| French Defense: Advance Variation | C02 | 8 plies |
| French Defense: Classical Variation, Delayed Exchange Variation | C11 | 7 plies |
| French Defense: Winawer Variation, Delayed Exchange Variation | C15 | 7 plies |
| French Defense: Orthoschnapp Gambit | C00 | 7 plies |
| French Defense: Exchange Variation | C01 | 7 plies |
| French Defense: Exchange Variation | C01 | 7 plies |
| French Defense: Winawer Variation, Advance Variation | C17 | 8 plies |
| French Defense: Hoffmann Gambit | C00 | 8 plies |
| French Defense: Winawer Variation, Petrosian Variation | C16 | 8 plies |
| French Defense: St. George Defense, St. George Gambit | C00 | 8 plies |
| French Defense: Tarrasch Variation, Open System, Shaposhnikov Gambit | C07 | 8 plies |
| French Defense: McCutcheon Variation | C12 | 8 plies |
| French Defense: Classical Variation, Normal Variation | C13 | 8 plies |
| French Defense: Tarrasch Variation, Guimard Defense, Main Line | C04 | 8 plies |
| French Defense: Tarrasch Variation, Chistyakov Defense | C07 | 8 plies |
| French Defense: Tarrasch Variation, Open System | C08 | 8 plies |
| French Defense: Rubinstein Variation, Ellis Gambit | C10 | 8 plies |
| French Defense: Classical Variation, Burn Variation | C11 | 8 plies |
| French Defense: Rubinstein Variation, Blackburne Defense | C10 | 8 plies |
| French Defense: Rubinstein Variation, Maric Variation | C10 | 8 plies |
| French Defense: Advance Variation, Kupreichik Variation | C02 | 9 plies |
| French Defense: Advance Variation, Paulsen Attack | C02 | 9 plies |
| French Defense: Winawer Variation, Advance Variation | C17 | 9 plies |
| French Defense: Winawer Variation, Bogoljubow Variation | C17 | 9 plies |
| French Defense: Winawer Variation, Advance Variation, Moscow Variation | C17 | 9 plies |
| French Defense: Advance Variation, Nimzowitsch Gambit | C02 | 9 plies |
| French Defense: Advance Variation, Ruisdonk Gambit | C02 | 9 plies |
| French Defense: Tarrasch Variation, Pawn Center Variation | C05 | 9 plies |
| French Defense: McCutcheon Variation, Advance Variation | C12 | 9 plies |
| French Defense: Steinitz Variation, Gledhill Attack | C11 | 9 plies |
| French Defense: McCutcheon Variation, Wolf Gambit | C15 | 9 plies |
| French Defense: Winawer Variation, Fingerslip Variation, Schwarz's Line | C15 | 9 plies |
| French Defense: Reversed Philidor Formation | C00 | 9 plies |
| French Defense: Advance Variation, Euwe Variation | C02 | 10 plies |
| French Defense: Advance Variation, Wade Variation | C02 | 10 plies |
| French Defense: Classical Variation, Shirov-Anand Variation | C11 | 9 plies |
| French Defense: McCutcheon Variation, Exchange Variation | C12 | 9 plies |
| French Defense: Classical Variation, Richter Attack | C13 | 9 plies |
| French Defense: Winawer Variation, Retreat Variation | C17 | 10 plies |
| French Defense: Exchange Variation, Svenonius Variation | C01 | 9 plies |
| French Defense: Steinitz Variation | C11 | 10 plies |
| French Defense: Classical Variation, Tartakower Variation | C13 | 10 plies |
| French Defense: Classical Variation, Vistaneckis Variation | C13 | 10 plies |
| French Defense: Tarrasch Variation, Guimard Defense, Thunderbunny Variation | C03 | 10 plies |
| French Defense: Tarrasch Variation, Open System, Advance Line | C08 | 10 plies |
| French Defense: Exchange Variation, Bogoljubow Variation | C01 | 10 plies |
| French Defense: Tarrasch Variation, Open System, Main Line | C09 | 10 plies |
| French Defense: Rubinstein Variation, Fort Knox Variation | C10 | 10 plies |
| French Defense: Classical Variation | C13 | 10 plies |
| French Defense: Winawer Variation, Fingerslip Variation, Kunin Double Gambit | C15 | 10 plies |
| French Defense: Winawer Variation, Alekhine Gambit Accepted | C15 | 10 plies |
| French Defense: Advance Variation, Main Line | C02 | 11 plies |
| French Defense: Advance Variation, Milner-Barry Gambit | C02 | 11 plies |
| French Defense: Winawer Variation, Bogoljubow Variation, Icelandic Defense | C17 | 11 plies |
| French Defense: Steinitz Variation | C11 | 11 plies |
| French Defense: Steinitz Variation | C11 | 11 plies |
| French Defense: McCutcheon Variation, Janowski Variation | C12 | 11 plies |
| French Defense: McCutcheon Variation, Bernstein Variation | C12 | 11 plies |
| French Defense: McCutcheon Variation, Dr. Olland Variation | C12 | 11 plies |
| French Defense: Steinitz Variation | C11 | 11 plies |
| French Defense: McCutcheon Variation, Chigorin Variation | C12 | 11 plies |
| French Defense: Alekhine-Chatard Attack | C13 | 11 plies |
| French Defense: Classical Variation | C14 | 11 plies |
| French Defense: Advance Variation, Lputian Variation | C02 | 12 plies |
| French Defense: Winawer Variation, Advance Variation | C18 | 11 plies |
| French Defense: St. George Defense, Traditional Line | C00 | 12 plies |
| French Defense: Tarrasch Variation, Botvinnik Variation | C05 | 12 plies |
| French Defense: Winawer Variation, Kondratiyev Variation | C15 | 11 plies |
| French Defense: Winawer Variation, Retreat Variation, Armenian Line | C17 | 12 plies |
| French Defense: Tarrasch Variation, Closed Variation | C05 | 12 plies |
| French Defense: Alekhine-Chatard Attack, Maróczy Variation | C13 | 12 plies |
| French Defense: Alekhine-Chatard Attack, Breyer Variation | C13 | 12 plies |
| French Defense: Alekhine-Chatard Attack, Teichmann Variation | C13 | 12 plies |
| French Defense: Classical Variation, Frankfurt Variation | C13 | 12 plies |
| French Defense: Winawer Variation, Winckelmann-Reimer Gambit | C15 | 11 plies |
| French Defense: Winawer Variation, Exchange Variation, Canal Attack | C15 | 11 plies |
| French Defense: Steinitz Variation | C11 | 12 plies |
| French Defense: McCutcheon Variation, Lasker Variation | C12 | 12 plies |
| French Defense: McCutcheon Variation, Tartakower Variation | C12 | 12 plies |
| French Defense: Alekhine-Chatard Attack, Spielmann Variation | C13 | 12 plies |
| French Defense: Winawer Variation, Maróczy-Wallis Variation | C17 | 12 plies |
| French Defense: Winawer Variation, Classical Variation | C18 | 12 plies |
| French Defense: Winawer Variation, Advance Variation | C18 | 12 plies |
| French Defense: Winawer Variation, Portisch-Hook Variation | C18 | 12 plies |
| French Defense: Classical Variation | C14 | 12 plies |
| French Defense: Tarrasch Variation, Eliskases Variation | C07 | 12 plies |
| French Defense: Winawer Variation, Alekhine Gambit, Kan Variation | C15 | 12 plies |
| French Defense: Classical Variation, Burn Variation, Morozevich Line | C11 | 12 plies |
| French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | C02 | 13 plies |
| French Defense: Steinitz Variation, Boleslavsky Variation | C11 | 13 plies |
| French Defense: Winawer Variation, Advance Variation, with h4 | C18 | 13 plies |
| French Defense: Winawer Variation, Advance Variation, Smyslov Variation | C19 | 13 plies |
| French Defense: Steinitz Variation, Bradford Attack Variation | C11 | 13 plies |
| French Defense: Winawer Variation, Advance Variation | C17 | 13 plies |
| French Defense: Winawer Variation, Advance Variation, with Bd3 | C18 | 13 plies |
| French Defense: Winawer Variation, Positional Variation | C19 | 13 plies |
| French Defense: Classical Variation, Richter Attack | C13 | 13 plies |
| French Defense: Classical Variation, Steinitz Variation | C14 | 13 plies |
| French Defense: Classical Variation, Alapin Variation | C14 | 13 plies |
| French Defense: Classical Variation, Pollock Variation | C14 | 13 plies |
| French Defense: Classical Variation, Rubinstein Variation | C14 | 13 plies |
| French Defense: Classical Variation, Tarrasch Variation | C14 | 13 plies |
| French Defense: Winawer Variation, Fingerslip Variation, Main Line | C15 | 13 plies |
| French Defense: Winawer Variation, Advance Variation, with h4 | C18 | 14 plies |
| French Defense: Winawer Variation, Advance Variation, Smyslov Variation | C19 | 14 plies |
| French Defense: Winawer Variation, Advance Variation, with Bd3 | C18 | 14 plies |
| French Defense: Winawer Variation, Eingorn Variation | C18 | 14 plies |
| French Defense: Winawer Variation, Poisoned Pawn Variation | C18 | 14 plies |
| French Defense: Winawer Variation, Warsaw Variation | C18 | 14 plies |
| French Defense: Winawer Variation, Positional Variation | C19 | 14 plies |
| French Defense: Rubinstein Variation, Kasparov Attack | C10 | 13 plies |
| French Defense: Winawer Variation, Positional Variation | C19 | 14 plies |
| French Defense: Rubinstein Variation, Capablanca Line | C10 | 13 plies |
| French Defense: Alekhine-Chatard Attack, Albin-Chatard Gambit | C13 | 14 plies |
| French Defense: Classical Variation, Burn Variation, Main Line | C11 | 14 plies |
| French Defense: McCutcheon Variation, Bogoljubow Variation | C12 | 14 plies |
| French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | C02 | 15 plies |
| French Defense: Advance Variation, Milner-Barry Gambit, Main Line | C02 | 15 plies |
| French Defense: Winawer Variation, Positional Variation | C19 | 15 plies |
| French Defense: Tarrasch Variation, Closed Variation, Main Line | C06 | 15 plies |
| French Defense: Winawer Variation, Poisoned Pawn Variation Declined | C18 | 15 plies |
| French Defense: Winawer Variation, Positional Variation | C19 | 15 plies |
| French Defense: Winawer Variation, Positional Variation | C19 | 15 plies |
| French Defense: Winawer Variation, Poisoned Pawn Variation | C18 | 15 plies |
| French Defense: McCutcheon Variation, Lasker Variation | C12 | 16 plies |
| French Defense: Tarrasch Variation, Leningrad Variation | C06 | 16 plies |
| French Defense: Winawer Variation, Positional Variation | C19 | 16 plies |
| French Defense: Winawer Variation, Alekhine Gambit, Alatortsev Variation | C15 | 16 plies |
| French Defense: Advance Variation, Milner-Barry Gambit, Sørensen Variation | C02 | 17 plies |
| French Defense: McCutcheon Variation, Duras Variation | C12 | 17 plies |
| French Defense: Winawer Variation, Positional Variation | C19 | 17 plies |
| French Defense: Winawer Variation, Positional Variation | C19 | 17 plies |
| French Defense: McCutcheon Variation, Grigoriev Variation | C12 | 17 plies |
| French Defense: Steinitz Variation, Brodsky-Jones Variation | C11 | 18 plies |
| French Defense: Tarrasch Variation, Open System, Main Line | C09 | 17 plies |
| French Defense: Winawer Variation, Positional Variation | C19 | 18 plies |
| French Defense: Winawer Variation, Positional Variation | C19 | 18 plies |
| French Defense: Winawer Variation, Positional Variation | C19 | 18 plies |
| French Defense: Winawer Variation, Poisoned Pawn Variation | C18 | 18 plies |
| French Defense: Winawer Variation, Poisoned Pawn Variation, Paoli Variation | C18 | 19 plies |
| French Defense: Winawer Variation, Poisoned Pawn Variation, Main Line | C18 | 19 plies |
| French Defense: Classical Variation, Stahlberg Variation | C14 | 20 plies |
| French Defense: Tarrasch Variation, Chistyakov Defense, Modern Line | C07 | 20 plies |