Will Costello Recognized as Master Sommelier

Mandarin Oriental, Las Vegas is delighted to announce that Wine Director William Costello has been named Master Sommelier in North America. Mr. Costello is only one of 147 professionals to hold the prestigious title.

Mr. Costello successfully passed the theory portion of the Master Sommelier exam in May 2013 and completed all sections as of May 2015. He achieved the Advanced Certificate with Distinction by the Wine and Spirits Education Trust. Mr. Costello finished second place in the Chaîne des Rôtisseur’s Best Young Sommelier in the USA in 2013 as well as took first in the Ruinart Challenge for Las Vegas. He has also co-hosted New Zealand Winegrowers Master Classes in Las Vegas and Miami markets.

As the hotel’s Wine Director, Mr. Costello oversees the wine program for Mandarin Oriental, Las Vegas. His scope encompasses the Forbes Five Star fine-dining TWIST by Pierre Gagnaire, MOzen Bistro, Mandarin Bar, the hotel’s Pool Café, In-Room Dining, as well as the banquet catering and conference services selections.


“We are very proud and honored to have William as part of the Mandarin Oriental, Las Vegas team. His wine expertise and wealth of fine dining experience will continue to position TWIST and Mandarin Oriental as one of the top fine dining destinations in Las Vegas” said Clifford Atkinson, Mandarin Oriental, Las Vegas’ General Manager.

The Master Sommelier Diploma is the highest distinction a professional can attain in the beverage service industry. The Master Sommelier Diploma Examination consists of three sections: a verbal theory examination, a blind tasting of six wines in 25 minutes, and a practical service component which focuses on restaurant beverage service and salesmanship. Candidates must receive passing scores in each category in order to earn the highly coveted title of Master Sommelier.

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