Set up at a cost of 40 million sterling (RM208 million) state-of-the-art school bears the name of Tan Sri Dr B.C. Sekhar, a former chairman of the Rubber Research Institute of Malaysia.
The school, to open in 2010, will be home to the university's medicine and science departments.
Sekhar's youngest son, Datuk Vinod Sekhar, the founder and chairman of the Sekhar Foundation and the Petra Group, unveiled a plaque at the school during a special dedication ceremony recently.
He said his father loved creating solutions for problems that ailed the world.
Also present were Vinod's eldest brother, Jayan, and former Prime Minister Abdul Rahman's only grandson Muinuddin Putra.
The Sekhar Foundation has also financed an eight million sterling scholarship fund for Southeast Asian students who wish to study at the school.
The Petra Group and St Andrews also have a joint venture in the area of bio-photonics.