| Yuri Semenovich Lazurkin | |
| Birth Date: | 1916 |
| Birth Place: | Russian Empire |
| Death Date: | August 5, 2009 (aged 92-93) |
| Nationality: | Russian |
| Fields: | Polymer physics, DNA physics |
| Workplaces: | Leningrad Physico-Technical Institute I. V. Kurchatov Institute of Atomic Energy Russian Academy of Sciences |
| Doctoral Advisor: | Anatolii Petrovich Aleksandrov |
| Doctoral Students: | Edward Trifonov |
| Known For: | founder of DNA physics |
Yuri Semenovich Lazurkin (1916–August 5, 2009) was a Russian physicist and a founder of the new discipline of DNA physics.
Lazurkin started his career in a novel field polymer physics. During World War II, he was in the Navy and worked on demagnetizing of ships.
After the war, he returned to polymer physics. One of the phenomenons that his laboratory studied and greatly contributed to its understanding, was DNA melting.