POPSUGAR Celebrity Sienna Miller Photos of Sienna Miller in a Bikini in Ibiza by Celebrity 8/13/09 0 Shares Like us on Facebook Sign up for our daily newsletter > Previous Photo 1 of 11 View on One Page ADVERTISEMENT ( more slides) Next Share This Link Copy 1 Photos of Sienna Miller in a Bikini in Ibiza Previous Photo 1 of 11 View on One Page ADVERTISEMENT ( more slides) Next Read More TravelVacationBikiniSienna Miller Bikini 9 Times Rihanna Showed a Whole Lot of Skin This Summer See Kim Kardashian and North West's Beach Day in St. Barts! Bikini-Clad Pippa Middleton Goes Paddleboarding With Her Brother, James The Best Bikini Moments of 2015 — So Far! Travel 35 Unique Travel Tattoos to Fuel Your Eternal Wanderlust 36 Disney World Hacks That Will Make Your Trip Even More Magical 20 Things That Happen When You Stay at a Sandals Resort Every Disney Fan Should Complete This Incredible Bucket List Sienna Miller 14 Style Icons Who Make Jeans and a White Tee All Their Own Bradley Cooper Will Make You Say "Yes, Chef" in the Trailer For Burnt The Craziest, Most Brilliant Dresses Alexander Wang Designed For Balenciaga Proof That Sienna Miller's Bohemian Style Is All Grown Up POPSUGAR, the #1 independent media and technology company for women. Where more than 75 million women go for original, inspirational content that feeds their passions and interests. Be in the Know With OurCelebrity and Entertainment Newsletter Personalize TV Young Hollywood Movies A-Listers Sign up with facebook or By signing up, I agree to the Terms and to receive emails from POPSUGAR.