Leucosia may refer to any of the following:
*
''Leucosia'' (genus), a genus of crabs
*
Leucosia, a possible name for one of the sirens of Greek mythology
*Leucosia, a former name for
Nicosia
Nicosia ( ; el, Λευκωσία, Lefkosía ; tr, Lefkoşa ; hy, Նիկոսիա, romanized: ''Nikosia''; Cypriot Arabic: Nikusiya) is the largest city, capital, and seat of government of Cyprus. It is located near the centre of the Mesaor ...
, Cyprus
*Kira Underwood, a deceased character in ''
Ready Player One'' whose persona is Leucosia.
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