Leucojum is a small genus of bulbous plants belonging to the Amaryllis family, subfamily Amaryllidoideae native to Eurasia.

As currently circumscribed the genus includes only two known species

Leucojum is a compound of Greek λευκος, leukos "white" and ἰόν, ion "violet". The spelling Leucoium is also used. Other common names include snowbell, dewdrop, and St. Agnes' flower.