The Pattern 1796 light cavalry sabre is a sword that was used primarily by British light dragoons and hussars, and King's German Legion light cavalry during the Napoleonic Wars. It was adopted by the Prussians (as the 1811 pattern or "Blücher sabre") and used by Portuguese and Spanish cavalry.

During the early part of the French Revolutionary Wars, the British Army launched an expeditionary force into Flanders. With the invading army was a young captain of the 2nd Dragoon Guards, serving as a brigade major, John Gaspard Le Marchant. Le Marchant noted the lack of professional skill displayed by the horsemen and the clumsy design of the heavy, over-long swords then in use (the 1788 Patterns) and decided to do something about it. Among many other things Le Marchant did to improve the cavalry, he designed, in collaboration with the Birmingham sword cutler Henry Osborn, a new sabre. This was adopted by the British Army as the Pattern 1796 Light Cavalry Sabre. Le Marchant wanted his sabre to be adopted by all British cavalry, but the board of general officers decided to arm the heavy cavalry with a straight sword.^[1]

An eastern influence can be detected in the blade form, and Le Marchant is recorded as saying that the "blades of the Turks, Mamalukes, Moors and Hungarians [were] preferable to any other".^[2] The post 1630, knuckle bow hilted, fullered, Szabla, of the Polish-Hungarian Hussars, is often credited as Le Marchant's inspiration for the pattern.^[3]

The blade profile is similar to some examples of the Indian tulwar.^[4] This similarity prompted some Indian armourers to re-hilt old 1796 pattern blades as tulwars later in the 19th century.^[5][6]

The mounted swordsmanship training of the British emphasised the cut, at the face for maiming or killing, or at the arms to disable. This left masses of mutilated or disabled troops; the French, in contrast, favoured the thrust, which gave cleaner kills.^[12] A cut with the 1796 LC sabre was, however, perfectly capable of killing outright, as was recorded by George Farmer of the 11th Regiment of Light Dragoons, who was involved in a skirmish on the Guadiana River in 1811, during the Peninsular War:

Just then a French officer stooping over the body of one of his countrymen, who dropped the instant on his horse's neck, delivered a thrust at poor Harry Wilson's body; and delivered it effectually. I firmly believe that Wilson died on the instant yet, though he felt the sword in its progress, he, with characteristic self-command, kept his eye on the enemy in his front; and, raising himself in his stirrups, let fall upon the Frenchman's head such a blow, that brass and skull parted before it, and the man's head was cloven asunder to the chin. It was the most tremendous blow I ever beheld struck; and both he who gave, and his opponent who received it, dropped dead together. The brass helmet was afterwards examined by order of a French officer, who, as well as myself, was astonished at the exploit; and the cut was found to be as clean as if the sword had gone through a turnip, not so much as a dint being left on either side of it.^[13]

The blade is remembered today as one of the best of its time and has been described as the finest cutting sword ever manufactured in quantity. Officers of the famous 95th Rifles, other light infantry regiments and the "flank" companies of line regiments adopted swords with an identical hilt to the 1796 light cavalry sabre, but with a lighter and shorter blade.^[14] The sabre was also copied by the Prussians; indeed, some Imperial German troops were equipped with almost identical swords into the First World War. The Americans also adopted a pattern which was directly influenced by the British sword.

• Pattern 1796 infantry officer's sword
• Hussar szabla
• Kilij