Flora Mure-Campbell, Marchioness of Hastings and 6th Countess of Loudoun (1780 – 8 January 1840) was a British peer, the second daughter of James Mure-Campbell, 5th Earl of Loudoun and Lady Flora Macleod. She married Francis Rawdon-Hastings, 2nd Earl of Moira, later the Governor-General of India, Governor of Malta and Marquess of Hastings, on 12 July 1804 and with him had six children: Around 1807 she commissioned the building of Loudoun Castle in Ayrshire, to designs by Archibald Elliot.