Brecon by-election

Brecon by-election or similar terms may refer to:


 * 1854 Brecon by-election
 * 1858 Breconshire by-election
 * 1875 Breconshire by-election
 * February 1866 Brecon by-election
 * October 1866 Brecon by-election
 * 1869 Brecon by-election
 * 1870 Brecon by-election
 * 1939 Brecon and Radnorshire by-election
 * 1985 Brecon and Radnor by-election
 * 2019 Brecon and Radnorshire by-election