Peter Ala Adjetey (11 August 1931 – 15 July 2008) was the Speaker of the Parliament of Ghana from 2001 to 2005.
Peter Ala Adjetey was born on 11 August 1931 at Accra, the capital of Ghana. He obtained his basic education at St. Paul's School at La, a suburb of Accra, and at Accra Bishop Boys' School. His secondary education was at Accra Academy. He proceeded to the University College of the Gold Coast (now the University of Ghana), where he obtained the University of London intermediate Bachelor of Arts degree in 1954. He then proceeded to the United Kingdom, where he graduated with a Bachelor of Laws degree from University of Nottingham in 1958. Adjetey was called to the Bar at Middle Temple in London in 1959. He returned to Ghana in the same year where he was also called to the bar.