Yeoh Ghim Seng (June 22, 1918 – June 3, 1993) was Speaker of the Parliament of Singapore from 1970 to 1989. He is said to be one of the longest serving Speakers of any parliament in the world.He received his early education at St. Michael's Institution in his hometown of Ipoh (in Malaysia) and at Penang Free School. He studied medicine at Cambridge University in the 1940s and was on attachment to hospitals there before becoming a Fellow of the Royal College of Surgeons of England in 1950.