The Nottingham East by-election was a Parliamentary by-election held on 19 April 1912. It returned one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom, elected through the first past the post voting system.
John David Rees held the seat for the Conservative Party.
A General Election was due to take place by the end of 1915. By the autumn of 1914, the following candidates had been adopted to contest that election. Due to the outbreak of war, the election never took place.