Vidya Jyothi E. O. Eustace Pereira (13 September 1907 – 1988) was a Sri Lankan Engineer and Academic.
Pereira received his education at the Royal College, Colombo, where he excelled in both academics and sports.
Pereira served in the Department of Public Works for 15 years before joining the teaching staff of the University of Ceylon in 1946.
Pereira Memorial Prize is awarded for the Best Paper by the Institute of Engineers Sri Lanka; the annual E.O.E.
His grandfather, Edwin C. Pereira, was a member of the first class of students to graduate from the Ceylon Medical College in 1872.