Ob constituency

Ob single-member constituency
Constituency of the Russian State Duma
Constituency boundaries from 2016 to 2026
Deputy	Tatyana Solomatina United Russia
Federal subject	Tomsk Oblast
Districts	Alexandrovsky, Bakcharsky, Chainsky, Kargasoksky, Kedrovy, Kolpashevsky, Kozhevnikovsky, Krivosheinsky, Molchanovsky, Parabelsky, Shegarsky, Strezhevoy, Tomsk (Kirovsky, Sovetsky), Tomsky (Bogashevskoye, Kaltayskoye, Kopylovskoye, Kornilovskoye, Mezheninovskoye, Mirnenskoye, Moryakovskoye, Novorozhdestvenskoye, Oktyabrskoye, Rybalovskoye, Spasskoye, Turuntayevskoye, Voroninskoye, Zarechnoye, Zorkaltsevskoye)
Other territory	Germany (Hamburg-3)
Voters	380,126 (2021)[1]

The Ob constituency (No.182^[a]) is a Russian legislative constituency in Tomsk Oblast. The constituency covers southern half of Tomsk and sparsely populated western and central Tomsk Oblast, including oil-mining towns Kedrovy and Strezhevoy. After 2025 redistricting Tomsk Oblast is slated to lose one of its two constituencies, so Ob constituency is going to be dissolved and merged with Tomsk constituency.

The constituency has been represented since 2016 by United Russia deputy Tatyana Solomatina, Member of Legislative Duma of Tomsk Oblast and dermatologist.

1993–1995 Tomsk Rural constituency: Alexandrovsky District, Asino, Asinovsky District, Bakcharsky District, Chainsky District, Kargasoksky District, Kedrovsky District, Kolpashevo, Kolpashevsky District, Kozhevnikovsky District, Krivosheinsky District, Molchanovsky District, Parabelsky District, Pervomaysky District, Seversk, Shegarsky District, Strezhevoy, Teguldetsky District, Verkhneketsky District, Zyryansky District
The constituency covered most of Tomsk Oblast outside of the oblast capital Tomsk and its suburbs. After the 1995 redistricting Tomsk Oblast lost one of its two constituencies, so both Tomsk Rural and Tomsk Urban constituencies were merged into a single constituency, covering the entirety of Tomsk Oblast.

2016–2026: Alexandrovsky District, Bakcharsky District, Chainsky District, Kargasoksky District, Kedrovy, Kolpashevsky District, Kozhevnikovsky District, Krivosheinsky District, Molchanovsky District, Parabelsky District, Shegarsky District, Strezhevoy, Tomsk (Kirovsky, Sovetsky), Tomsky District (Bogashevskoye, Kaltayskoye, Kopylovskoye, Kornilovskoye, Mezheninovskoye, Mirnenskoye, Moryakovskoye, Novorozhdestvenskoye, Oktyabrskoye, Rybalovskoye, Spasskoye, Turuntayevskoye, Voroninskoye, Zarechnoye, Zorkaltsevskoye)
The constituency was re-created for the 2016 election. Tomsk Oblast re-gained a second district, so new Ob constituency took southern half of Tomsk and sparsely populated western and central Tomsk Oblast.