The Trust joined forces with health organisations across the world on March 16, by inviting patients to join them for afternoon tea and be part of the record attempt.
A total of 294 cream teas were handed out across 18 wards and these results are now being collated with the bids other participants.
The Guinness Book of Records credits the Yorkshire Building Society as the current holders after hosting a party across six sites in June 2015, which was attended by 667 members of staff.
Royal Surrey’s world record breaking attempt was part of Global Nutrition and Hydration Week 2016.
Throughout the week (March 14-20), the Trust hosted a variety of activities to raise awareness of the benefits of good nutrition and hydration.
As well as the tea party, other events included the Big Breakfast, Snack Basket, Thirsty Thursday, and Fruity Friday.
Royal Surrey’s Deputy Director of Nursing, Jenny Faulkner, said: “The tea party was absolutely fantastic and our patients really enjoyed being part of a World Record attempt.
“A great team effort saw many of our non-medical staff, including some of our directors, as well as some of our valued volunteers helping to hand out the cream teas.
“We would also like to say a special thank you to those members of the public who volunteered to witness our attempt.
“Nutrition and hydration week is all about raising awareness of the need for good nutrition and hydration, not just for patients but for members of staff as well.
“The benefit that a tasty well-balanced meal and regular fluids can have on a patient’s treatment, condition and overall wellbeing cannot be ignored.”