L15 or L-15 may refer to:

Vehicles Aircraft Boeing L-15 Scout, an American liaison aircraft Daimler L15, a German light aircraft Hongdu L-15, a Chinese supersonic training and light attack aircraft Zeppelin LZ 48, a German airship of World War I

Ships , an amphibious assault ship of the Royal Navy , a destroyer of the Royal Navy , a sloop of the Royal Navy , a submarine of the Royal Navy , several ships of the Indian Navy

Other uses 60S ribosomal protein L15 Lectionary 15, a 13th-century, Greek manuscript of the New Testament Lindeteves-Jacoberg Limited, a Singaporean investment holding company Mitochondrial ribosomal protein L15 Nikon Coolpix L15, a digital camera