| Dmitry Petelin | |
| Native Name: | Дмитрий Петелин |
| Type: | Roscosmos cosmonaut |
| Status: | Active |
| Birth Date: | 10 July 1983 |
| Birth Place: | Kustanai, Kazakh SSR, USSR |
| Current Occupation: | Test cosmonaut |
| Previous Occupation: | Aeronautical engineer |
| Space Time: | 370 days, 21 hours, 23 minutes |
| Selection: | TsPK 2012 Cosmonaut Group |
| Missions: | Soyuz MS-22/Soyuz MS-23 (Expedition 67/68/69) |
| Evas: | 6 |
| Eva Time: | 39 hours, 44 minutes |
Dmitry Aleksandrovich Petelin (ru|Дмитрий Александрович Петелин; born July 10, 1983) is a Russian cosmonaut who was part of the 2012 selection group.
He flew to the ISS on September 21, 2022 with Soyuz MS-22, which was damaged while being docked to the station, and returned to Earth on September 27, 2023 with Soyuz MS-23 after spending a year in space.
Petelin graduated from the South Ural State University in 2006 with a degree in aircraft and helicopter engineering. Following graduation, he worked as an engineer for NIK, LLC. On October 26, 2012, he became a cosmonaut and reported to the Yuri Gagarin Cosmonaut Training Center. He completed cosmonaut training and was named a test cosmonaut on July 15, 2014.
He is married and has one daughter.