Meaning Lanis is a girls name of Celtic origin, it means little rock; the one who is peaceful. Origin of Lanis Celtic , Irish +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Lanis La-nis Similar Names Sheehan Alen Allan Allen Allon Adan Fergie Atur Feargus Alain Year by Year Popularity of Lanis