The Election Commission Office reported that on the first day of registration for the Udon Thani by-election, District 3, only two candidates applied: Athikan Kaokhruasri from the Bhumjaithai Party and Khajit Chainikom from the New Democracy Party.
On 1 August 2026, the Election Commission Office summarized the registration results for the by-election of the Member of Parliament for Udon Thani Province, Constituency 3, to fill a vacant seat. This constituency includes Phen District, Sang Khom District, and part of Mueang Udon Thani District (specifically Ban Khao Subdistrict). Registration is open from 1 to 5 August 2026 at the Phutthaan meeting room, 2nd floor, Phen District Office, Udon Thani. The Election Commission has scheduled the by-election for Sunday, 30 August 2026.
On the first day of registration, two candidates registered for the Udon Thani by-election, Constituency 3: 1. Khajit Chainikom of the New Democracy Party, and 2. Athikan Kaokhruasri of the Bhumjaithai Party.
Those wishing to register as candidates for the Udon Thani by-election, Constituency 3, to fill the vacant seat can submit their application forms along with supporting documents and a registration fee of 10,000 baht until 5 August 2026, between 08:30 and 16:30, at the Phutthaan meeting room, 2nd floor, Phen District Office, Udon Thani.
