| Native Name: | Сергей Дьяченко |
| 1Blankname: | Chair |
| Term Start: | 18 January 2012 |
| Term End: | 20 January 2016 |
| 1Blankname2: | Chair |
| Term Start2: | 13 November 2004 |
| Term End2: | 13 March 2010 |
| Term Start3: | 20 January 2012 |
| Term End3: | 26 October 2016 |
| Term Start4: | 1 December 1999 |
| Term End4: | 13 March 2010 |
| Constituency4: | Promyshlenniy (1999–2004) Almaty, No. 6 (2004–2007) Nur Otan List (2007–2010) |
| Successor4: | Danarbek Isabekov (2022) |
| Term Start5: | 13 March 2010 |
| Term End5: | 20 January 2012 |
| Predecessor5: | Albert Ray |
| Birth Date: | 18 September 1952 |
| Party: | Nur Otan (1999−2016) |
| Otherparty: | QKP (1973–1991) |
Sergey Aleksandrovich Dyachenko (Russian: Сергей Александрович Дьяченко; 18 September 1952 – 26 October 2016) was a Kazakh-born Soviet politician. He was Deputy Chairman of the Mäjilis from 2012 to 2016, member of the Mäjilis from 2012 to 2016, and Akim of Aktobe Region from 2010 to 2012.[1]
Dyachenko was born in 1952 in the village of Shortandy in the Akmola Region of the Kazakh SSR.
In 1973, he graduated from the Industrial and Economic Department of the Kuibyshev Planning Institute, receiving a degree in economics. Subsequently, he graduated from the Alma-Ata Higher Party School where he earned a Ph.D in political science. The topic of his doctoral dissertation was “Problems of democratic modernization in Kazakhstan (political science analysis)”. He began his career as an engineer-economist at the plant of devices and capacitors in the city of Kuznetsk. That same year, Dyachenko was drafted into Soviet Army. He served in the Red Banner Far Eastern Military District in Primorsk.
After serving in the army, Dyachenko returned to Kazakhstan. Over the past ten years, he had gone from working as an instructor to the Shortandinsky District Committee to being the Second Secretary of the Central Committee of the Komsomol of Kazakh SSR. From 1985 to 1991, he was the First Secretary of the Kokchetau City Committee of the QKP, and at the same time, from 1990, as the Chairman of the Kokchetau City Council of People's Deputies. From 1991 to 1993, Dyachenko worked as Deputy Chairman of the State Committee of the Kazakh SSR for Youth, Physical Education and Sports, and Deputy Minister of Tourism, Physical Culture and Sports of Kazakhstan. From 1993 to 1999, he worked in public organizations.
After the 1999 legislative election, Dyachenko became a member of the Mazhilis. In 2004, he was re-elected for another term and became its Deputy Chairman in November 2004. In 2006, he was chosen as a Deputy Chairman of the Assembly of Peoples of Kazakhstan and was a member of the Political Council of Nur Otan. In March 2010, he was appointed as the Akim of the Akmola region. From 2012 to 2016, Dyachenko was a Deputy Chairman of the Mazhilis.[2]
Dyachenko died on 26 October 2016, in Astana at the age of 64.[3]
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