A slavic name (Егор) that is the same as Yegor, but differs from Igor. Egor is properly pronounced yegor, with the stress on the 2nd syllable and the r rrrrolled. It has a Norse origin meaning "archer-soldier." It is relatively uncommon, even in Russia.
"Anton spots them and talks with Maxim, explaining the Treaty between Light and Dark, but Maxim doesn't comply, pointing out that Egor will grow up to be a dark mage, and it's better to kill him now." --from Wikipedia's description of the movie Night Watch