Thomas Alcock (1801 – 1866) was a British Member of Parliament for 24 years non-consecutively, a progressive Liberal on questions of expansion of the popular ballot he was also an established church benefactor. He was a Member of Parliament (MP) for the rotten borough of Newton, Lancashire between 1826 and 1830, and after the Great Reform Act, sat for Ludlow, Shropshire from 1839 to 1840, and having lost elections such as the 1841 East Surrey by-election served that seat from 1847 to 1865. He was appointed High Sheriff of Surrey for 1837.