L70 can refer to:
LG Optimus L70 a smartphone. Bofors 40 mm Automatic Gun L/70, a Swedish anti-aircraft gun. Bofors 57 mm L/70 naval artillery gun, a Swedish naval gun. Daihatsu Mira#L70/L80 series, a variant of a Japanese car. , a British naval ship. A Lumen maintenance notation for time (ex. hours) a light source maintains 70% of its original output, also written L70. Valmet L-70 Vinka, a Finnish military aircraft.