6E

6E or 6-E can refer to:


 * 6E, IATA code for IndiGo, an Indian airline
 * 6th meridian east
 * A-6E, a model of Grumman A-6 Intruder
 * 6e RG, abbreviation for 6th Engineers Regiment
 * South African Class 6E, a locomotive
 * Schleicher K 6E, a model of Schleicher Ka 6
 * Cat 6e, a type of Category 6 cable
 * 6e, meaning 6th in French
 * 6e-12e Régiment de Cuirassiers, or 6th-12th Cuirassier Regiment
 * 6e Régiment de Parachutistes d'Infanterie de Marine, or 6th Marine Infantry Parachute Regiment
 * 6e division légère blindée, or 6th Light Armoured Brigade (France)
 * Paris 6e (or 6e arrondissement), the 6th arrondissement of Paris
 * Paul, 6e duc de Noailles, or Paul, 6th duc de Noailles
 * Maurice, 6e Duc de Broglie, or Maurice, 6th duc de Broglie
 * Jean II, 6e Duc de Bourbon, or John II, Duke of Bourbon
 * Louis III, 6e Prince de, Duc de Bourbon Conde, or Louis, Prince of Condé (1668–1710)
 * 6E, the production code for the 1983 Doctor Who serial Arc of Infinity