E. montana may refer to:
Ena montana, an air-breathing land snail Epichnopterix montana, a moth of the family Psychidae Erethistoides montana, a South Asian river catfish Eucomis montana, a plant species found in Southern Africa Eucommia montana, an extinct species of flowering plant in the family Eucommiaceae Eupithecia montana, a moth in the family Geometridae
See also Montana (disambiguation)