Please note: This guide is no longer regularly updated and may contain outdated info. We are working on other projects over at onionring.co.uk.
Sumosan Online Booking Tool
You can check realtime availability information and make confirmed restaurant reservations online with Onionring. Its fast, secure and free to use so why wait? Book your table at Sumosan now!
About Sumosan
Sumosan is a sophisticated, family-run Japanese restaurant in the heart of Mayfair. This elegant eatery with its muted colours and discreet booth seating has a warm, intimate atmosphere. Food is an innovative, uncompromising array of well-executed dishes, including Kobe beef, quail teriyaki and an express sushi bar for those in a rush.