Ilyin or Ilin (Russian: Ильин) is a Russian masculine surname derived from a given name Ilya, its feminine counterpart is Ilyina or Ilina. It may refer to
Aleksandr Ilyin (disambiguation), several people
Aleksei Ilyin (disambiguation), several people
Alin Ilin (born 1984), Romanian football player
Andrey Ilin (born 1960), Russian film and theater actor
Efraim Ilin (1912–2011), Israeli tycoon and security expert
Ekaterina Ilina (born 1991), Russian handball player
Fyodor Ilyin (1892–1939), Soviet admiral and diplomat
Gleb Ilyin (1889–1968), Russian-American painter
Ilya Ilin (born 1988), Kazakhstani weightlifter
Ivan Ilyin (1883–1954), Russian religious and political philosopher
Kostiantyn Ilin (born 1975), Ukrainian strongman competitor
Lev Ilyin (1880–1942), Russian architect
Mikhail Ilyin (1903–1981), Soviet art historian and Moscow expert
Natalya Ilina (born 1985), Kazakhstani handball player
Nikolai Ilyin (1809–1890), Russian religious thinker and founder of the movement of Yehowists
Olga Ilina (born 1995), Russian group rhythmic gymnast
Vera Ilyina (born 1974), Russian diver
Victoria Ilina (born 1999), Russian group rhythmic gymnast
Vladimir Ilyin (disambiguation), several people
Yuriy Ilyin, Ukrainian Admiral and Chief of the General Staff
Zoltan Ilin (born 1955), Yugoslavian tennis player
