Ilmen may refer to:
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Lake Ilmen
Lake Ilmen (, ) is a large lake in Novgorod Oblast, Russia. A historically important lake, it formed a vital part of the medieval trade route from the Varangians to the Greeks. The city of Veliky Novgorod, which is a major trade center of the ro ...
, a lake in Novgorod Oblast, Russia
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Ilmensky Mountains, in Chelyabinsk Oblast, Russia, which gives the name to
ilmenite
Ilmenite is a titanium-iron oxide mineral with the idealized formula . It is a weakly magnetic black or steel-gray solid. Ilmenite is the most important ore of titanium and the main source of titanium dioxide, which is used in paints, printi ...
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Il’mena'', a Russian ship
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Middle-earth cosmology#Ilmen, an atmospheric region of J. R. R. Tolkien's Middle-earth stories
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