The 28-year-old stepped out on less than 24 hours before the nuptials with freshly dyed reddish brown locks. She is set to wed Jack Brooksbank at St. George's Chapel, Windsor Castle on Friday, October 12.
We can't help but be reminded of another auburn-haired royal bride - Eugenie's mother Sarah 'Fergie' Ferguson, The Duchess of York. Fergie wed Prince Andrew at Westminster Abbey in 1986.
Find out more about Princess Eugenie's nuptials by following our royal wedding coverage, here.