Ihor Dashko was born on June 18, 1977, in Sambir, in the Ukrainian SSR.
He studied at the Secondary School No. 1 named after Taras Shevchenko, in Sambir, from which he graduated in 1994.
After graduating from the Academy of the State Border Service of Ukraine in 1999, he started working in the city of Mariupol, in the Department of the State Border Service of Ukraine.
From the summer of 2012 to January 2022, he served in the Western Regional Department of the State Security Service.
The title of «Hero of Ukraine» with the award of the «Golden Star» order (April 17, 2022, posthumously) — for personal courage and heroism, shown in the defense of state sovereignty and territorial integrity of Ukraine, selfless service to the Ukrainian people.