Louise Élisabeth de Bourbon (Louise Élisabeth; 22 November 1693–27 May 1775) was a daughter of Louis III de Bourbon, Prince of Condé, and his wife, Louise Françoise de Bourbon, légitimée de France, a legitimised daughter of King Louis XIV of France and his famous mistress, Madame de Montespan.
She was the wife of Louis Armand II de Bourbon, Prince of Conti.
It was Louise Élisabeth who presented Madame de Pompadour to the court of King Louis XV of France; she also built the Hôtel de Brienne, present seat of the French Ministry of Defence.
Louise Élisabeth was the Duchess of Étampes in her own right, having succeeded to the title at the death of her aunt, Marie Anne de Bourbon, Dowager Duchess of Vendôme.
The county of Sancerre, previously held by her brother, Louis Henri I, Prince of Condé, also became her property in 1740 at his death.