Ashurst Turner Gilbert (14 May 1786 – 21 February 1870) was an English churchman and academic, Principal of Brasenose College, Oxford, from 1822 and bishop of Chichester.

At the Michaelmas examination of 1808 he was placed in the first class in literis humanioribus, one of his four companions being Robert Peel.

On the death of Philip Shuttleworth he was nominated to the bishopric of Chichester, 24 January 1842, and consecrated at Lambeth Palace on 27 February.

This latter case led to much litigation, and eighteen works were printed in connection with the matter.

Gilbert was married on 31 December 1822 to Mary Anne, only surviving child of the Rev.