British Ships:
- Victory (100 guns) - Flagship of Admiral Horatio Nelson
- Royal Sovereign (100 guns) - Flagship of Admiral Cuthbert Collingwood
- Temeraire (98 guns)
- Neptune (98 guns)
- Dreadnought (98 guns)
- Prince (98 guns)
- Revenge (74 guns)
- Defence (74 guns)
- Devastation (74 guns)
- Leviathan (74 guns)
- Ajax (74 guns)
- Orion (74 guns)
- Thunderer (74 guns)
- Belleisle (74 guns)
- Bellerophon (74 guns)
- Colossus (74 guns)
- Conqueror (74 guns)
- Achille (74 guns)
- Swiftsure (74 guns)
- Montagu (74 guns)
- Africa (64 guns)
French Ships:
- Bucentaure (80 guns) - Flagship of Admiral Pierre-Charles Villeneuve
- Formidable (80 guns)
- Indomptable (80 guns)
- Scipion (74 guns)
- Intrépide (74 guns)
- Duguay-Trouin (74 guns)
- Mont-Blanc (74 guns)
- Aigle (74 guns)
- Algésiras (74 guns)
- Fougueux (74 guns)
- Héros (74 guns)
- Neptune (74 guns)
- Pluton (74 guns)
- Redoutable (74 guns)
- San Francisco de Asís (74 guns)
- Santa Ana (74 guns)
- Thémis (74 guns)
- Argonaute (74 guns)
- Neptune (74 guns)
- España (74 guns)
- San Justo (74 guns)
- Montanes (74 guns)
- Rayo (100 guns)
- Principe de Asturias (112 guns)
- Santa Trinidad (136 guns) - Captured by British forces, but wrecked in a storm
Spanish Ships:
- San Juan Nepomuceno (80 guns) - Flagship of Admiral Federico Gravina
- Príncipe de Asturias (112 guns)
- Santa Ana (74 guns)
- Rayo (100 guns)
- Montañés (74 guns)
- San Justo (74 guns)
- Argonauta (74 guns)
- San Leandro (64 guns)
- San Ildefonso (74 guns)
- San Francisco de Asís (74 guns)