Alys is a feminine given name. Notable people with the name include:
Alys, Countess of the Vexin (circa 1160-1220), French princessAlys Clare (born 1944), English historical novelistAlys Faiz (1914–2003), Pakistani poet, writer, journalist, human rights activist, social worker and teacherAlys ferch Owain Glyndŵr (15th century), daughter of Margaret Hanmer and Owain GlyndŵrAlys Fowler (born 1978), a television presenterAlys Pearsall Smith (1867–1951), American QuakerAlys Robi (1923–2011), Canadian singerAlys Vorpatril, a science fiction characterALYS, a French virtual singer developed by VoxWave on Alter/Ego