Sir Michael Foster (1689–1763) was an English judge.
Foster was the son of Michael Foster, an attorney, and was born at Marlborough, Wiltshire, on 16 December 1689. After attending the free school of his native town, he matriculated at Exeter College, Oxford, 7 May 1705. He does not appear to have taken any degree. He was admitted a student of the Middle Temple on 23 May 1707, and was called to the bar in May 1713. Meeting with little success in London, he retired to Marlborough, whence he afterwards removed to Bristol, where as a local counsel he gained a great reputation. In August 1735 he was chosen recorder of Bristol, and in Easter term 1736 became a Serjeant-at-law. He held the post of recorder for many years, and upon his resignation Sir Michael Foster (1689–1763) was an English judge.
Foster was the son of Michael Foster, an attorney, and was born at Marlborough, Wiltshire, on 16 December 1689. After attending the free school of his native town, he matriculated at Exeter College, Oxford, 7 May 1705. He does not appear to have taken any degree. He was admitted a student of the Middle Temple on 23 May 1707, and was called to the bar in May 1713. Meeting with little success in London, he retired to Marlborough, whence he afterwards removed to Bristol, where as a local counsel he gained a great reputation. In August 1735 he was chosen recorder of Bristol, and in Easter term 1736 became a Serjeant-at-law. He held the post of recorder for many years, and upon his resignation in 1764 was succeeded by Daines Barrington. During Foster's tenure of office several important cases came before him. In the case of Captain Samuel Goodere who was tried for the murder of his brother, Sir John Dineley Goodere, 2nd Baronet, in 1741, the right of the city of Bristol to try capital offences committed within its jurisdiction was fully established.