Émile Lejeune is the name of:
- Emile Lejeune (1885–?), US sailor, recipient of the Medal of Honor
- Emile Lejeune (cyclist) (1895-1973), French cyclist
- Émile Lejeune (painter) (1885–1964), Swiss painter born in Geneva, see Les Six
- Émile Lejeune (footballer) (born 1939), Belgian footballer