Alekseev (Alekseeva, Alexeyev, Alexeev, Alexeiev) — russian surname (Алексе́ев). Means «descendent of Alexey (Алексей)». Alexey is meaning «Defender».
People: Soviet athlete and trainer Viktor Alexeyev (1914–1977); Russian physisist and chemist Vladimir Alexeyev (1852–1919); Hero of the Soviet Union and Roviet admiral Vladimir Alexeyev (1912–1999); Russian military officer Mikhail Alekseev (1857–1918) and other.