This depends on the country. Re-ask your question or see related questions.
Canada: Pierre Trudeau was the Prime Minister of Canada in 1971.
UK: Edward Heath was the Prime Minister of the UK in 1971.
In 1960, Australia's Prime Minister was Robert Gordon Menzies.
The Indo-Pakistani War of 1971 was a military conflict between India and Pakistan. .... The Indian leadership WAS under Prime Minister Gandhi
Robert Menzies was the Prime Minister of Australia in 1965.
Norman Kirk,from 1971-1974.
William McMahon was Prime Minister of Australia from 22 March 1971 until 2 December 1972.
Pierre Elliot Trudeau was the prime minister of Canada in 1971. Trudeau served as prime minister from 1968 April 20 to 1979 June 4. After a brief interruption by Joe Clark's Tories, Trudeau served again from 1980 March 3 until his retirement on 1984 June 30.
John Grey Gorton became Australian Prime Minister on 9 January 1968.He served until 22 March 1971.
Nurul Amin was appointed as the eighth number prime minister of Pakistan. He also leaded Pakistan in the Indo-Pakistan war of 1971.
His Royal Highness Khalifa ibn Salman Al Khalifa was the Prime Minister of Bahrain in 1971. Khalifa became the first and thus far the only prime minister of Bahrain on 1971 December 16 when appointed by his brother, the Emir of Bahrain, Isa bin Salman Al Khalifa. On 2009 October 21, he received the title of prince from Emir Hamad bin Isa Al Khalifa, son of the previous Emir, and Khalifa ibn Salman's nephew. He continues as prime minister to this day.
Sir William McMAHON, PC, GCMG, CH., was Australia's 20th Prime Minister, serving from March 10, 1971, to December 5, 1972.
Malta. Dom Mintoff was the Prime Minister of Malta from 1955 to 1958 (when Malta was still a British crown colony) and again, post-Independence, from 1971 to 1984.
No one is, there is no prime minister of Nottingham forest, but the prime minister of England is the prime minister of Nottingham