If wedding invites are hitting your mailbox, it's time to start thinking about what to wear! Thankfully, the long-awaited Nordstrom Anniversary Sale is going on now until August 5, 2025 - and with it comes the opportunity to seize stylish wedding guest dresses at majorly discounted prices from brands like Vince Camuto, Maggy London, Eliza J, Donna Karan and other in-demand designers. We've sifted through countless options and curated a list of the 17 best wedding guest dress deals from the Nordstrom Anniversary Sale, starting as low as $43.