Lya is a female first or given name and is usually thought of as a variant of "Lia" or "Leah."
Notable people with the name include:
Lya Barrioz, Nicaraguan singer Lya De Putti (1899–1931), Hungarian actress Lya Isabel Fernández Olivares (born 2007), Mexican tennis player Lya Imber (1914–1981), Bessarabian-Venezuelan pediatrician Lya Ley (1899–1992), Austrian actress Lya Luft (born 1938), Brazilian writer Lya Lys (1908–1986), German American actress Lya Mara (1897–1960), German actress