Peter Allan Renshaw Blaker, Baron Blaker, KCMG, PC (4 October 1922 – 5 July 2009) was a British Conservative politician.

Blaker was born in Hong Kong, son of Cedric Blaker. He was educated at Shrewsbury School before being evacuated to Canada in 1939. There he took a degree in classics, before being commissioned in the Canadian Army. On return to England he went to New College, Oxford. He qualified as a lawyer, and later joined the Foreign Office.

In 1964 he was elected Member of Parliament for Blackpool South, which he represented until 1992. In Parliament, he served as a Minister for the Army (1972–74), Foreign and Commonwealth Affairs (1974 and 1979–81). He was a Minister of State in the Ministry of Defence from 29 May 1981,^[1] until 9 June 1983.^[2] He was sworn of the Privy Council in the 1983 Birthday Honours,^[3] and was appointed a Knight Commander of the Order of St Michael and St George (KCMG) on 21 July 1983.^[4]

On 10 October 1994 he was created a life peer as Baron Blaker, of Blackpool in the County of Lancaster and of Lindfield in the County of West Sussex.^[5]

In 1953, Blaker married Jennifer Dixon, daughter of diplomat Pierson Dixon. They had one son and two daughters.^[7]