Stars from around the globe attended the annual ceremony, held in Berkeley Square, London, by the UK's Glamour magazine, including Kelly Brook, Amanda Holden, Kylie Minogue and Katherine Jenkins.
As she arrived in a lace black gown, Hollywood star Jessica Alba said she was looking forward to hanging out with her A-list friends at the event.
She said: "It took me about an hour to get ready. I'm really looking forward to just celebrating women and seeing people here that I haven' seen very much because I'm always working, it's nice to just hang out with some of these glamorous people."
After a celebratory dinner, the awards got underway, with the first prize of the night going to singer Jessie J, for Solo Artist of the Year.
She was followed a little later by Sofia Vergara, who was named Comedy Actress of the Year for her role in 'Modern Family'.
Accepting her award, she said: "This is bl***y amazing! I'm so happy to be here, Glamour, thank you! To be part of this with all these glamorous people is amazing. Thank you so much, I hope to be back again."
'The X Factor' judge Kelly was especially pleased to receive the TV Personality Of The Year award, saying: "OK - I'm very nervous, my stomach's doing flips right now!"
Budding actress Lily Collins - daughter of pop star Phil Collins - received the Breakthrough Of The Year trophy for her role in 'Mirror, Mirror'
She said: "It really is so lovely to be back home in England, I grew up here, I'll never forget being in the countryside and stealing my mum's magazines."
Other winners included 'Glee's Lea Michele and singer Florence Welch.
Glamour Women of the Year Awards 2012 - full list of winners
UK Solo Artist of the year - Jessie J
Theatre Actress of the Year - Amanda Holden
Presenter of the Year - Holly Willoughby
Sportswoman of the Year - Jockey Hayley Turner
Comedy Actress of the Year - Sofia Vergara
UK TV Actress of the Year - Jessica Brown Findlay
Writer of the Year - Caitlin Moran
Radio Personality of the Year - Fearne Cotton
Accessories Designer of the Year - Charlotte Dellal
Entrepreneur of the Year - Jessica Alba
Band of the Year - Florence + the Machine
TV Personality of the Year - Kelly Rowland
US TV Actress of the Year - Lea Michel
Pandora Breakthrough of the Year - Lily Collins
Film Actress of the Year - Viola Davis
Man of the Year - Tom Hiddelston
Fashion Designer of the Year - Donatella Versace
Outstanding Contribution Award- Kylie Minogue
Icon Award- Dionne Warwick
Inspiration Award - Eva Longoria