Lucy is often seen in a bikini when she and her Essex pals go on holiday in Marbella. She has also launched her own swimwear range, and with a body as great as hers, it's no surprise that she chose to model them herself.
TOWIE star Lucy maintains her gorgeous body through working hard at the gym, which means she doesn't have to diet. "I would rather treat myself and work out than deprive myself of all the lovely things in life," she said told Closer magazine.
She also offered some valuable advice for people who want to get their bodies bikini-ready. "Never go for a quick-fix diet and never skip meals, because it makes your body store fat," she said. "Set a realistic goal for losing weight – one or two pounds a week – and eat regularly and healthily."
Rhianna, who came second in the poll, has always been envied for her bikini body, but Khloé Kardashian, who was voted the third best bikini body, was once criticised for being overweight. She recently lost 13lbs and now looks healthier and better than ever.
In July, Kholé spoke exculsively to HELLO! Online about her long-term fitness regime. "I have been on a work-out kick for about eight months now," she said. "I've been really focused on trying to lose some weight and stay healthy and fit.
"My weight has always fluctuated and I have always struggled with that, and done diets and stuff that's not long term and not a real solution… I have really just made a lifestyle change.
"You can eat all this junk food, but you don't realise how fast you can gain weight. It has just been something I have been slowly doing."
Beyoncé and Jessica Alba came in joint fourth position, with Made In Chelsea beauty Millie Mackintosh taking sixth place.
Coronation Street actress and FHM covergirl Michelle Keegan was voted in joint seventh place with Victoria Secret model and Vogue covergirl Rosie Huntington-Whiteley.
Ninth and tenth place belonged to feisty singers Rita Ora and Jessie J, respectively.
The poll was carried out by travel site HolidayPlace.co.uk.
A woman who took part in the survey said, "I admire Lucy Mecklenburgh so much, she is such an inspiration with an amazing figure.
"She has inspired so many women of all ages to exercise and her bikini body shows that hard work really does pay off."
Celebrities with the best bikini bodies
1. Lucy Mecklenburgh 31% - hourglass shape
2. Rihanna 20% - pear shape
3. Khloe Kardashian 12% - apple shape
4. Beyoncé 8% - pear shape
5. Jessica Alba 8% - hourglass shape
6. Millie Macintosh 7% - athletic shape
7. Michelle Keegan 4% - cone shape
8. Rosie Huntington-Whiteley 4% - athletic shape
9. Rita Ora 2% - pear shape
10. Jessie J 1% - pear shape
It's a little princess!